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    <link:label id="lab_nbx_CurrentAssetsOther_label_fr" xlink:label="lab_nbx_CurrentAssetsOther" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="fr">Autres actifs courants</link:label>
    <link:label id="lab_nbx_CurrentAssetsOther_documentation_fr" xlink:label="lab_nbx_CurrentAssetsOther" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Current Assets, Other</link:label>
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    <link:label id="lab_nbx_CurrentPortionOfNonCurrentBorrowingsAndCurrentLeaseLiabilities_documentation_fr" xlink:label="lab_nbx_CurrentPortionOfNonCurrentBorrowingsAndCurrentLeaseLiabilities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Current Portion Of Non Current Borrowings And Current Lease Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_nbx_CurrentPortionOfNonCurrentBorrowingsAndCurrentLeaseLiabilities" xlink:href="nbx-2024-12-31.xsd#nbx_CurrentPortionOfNonCurrentBorrowingsAndCurrentLeaseLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nbx_CurrentPortionOfNonCurrentBorrowingsAndCurrentLeaseLiabilities" xlink:to="lab_nbx_CurrentPortionOfNonCurrentBorrowingsAndCurrentLeaseLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_FinanceIncomeCost_ef5ee2c7-ca40-4a30-af48-dd759e8018c8_totalLabel_fr" xlink:label="lab_ifrs-full_FinanceIncomeCost" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="fr">Résultat financier</link:label>
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    <link:label id="lab_nbx_RefundLiabilityNonCurrent_label_fr" xlink:label="lab_nbx_RefundLiabilityNonCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="fr">Passif De Remboursement - Part Non Courante</link:label>
    <link:label id="lab_nbx_RefundLiabilityNonCurrent_documentation_fr" xlink:label="lab_nbx_RefundLiabilityNonCurrent" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Refund Liability, Non-Current</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_nbx_RefundLiabilityNonCurrent" xlink:href="nbx-2024-12-31.xsd#nbx_RefundLiabilityNonCurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nbx_RefundLiabilityNonCurrent" xlink:to="lab_nbx_RefundLiabilityNonCurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_nbx_PropertyPlantAndEquipmentIncludingRightOfUseAssets_label_fr" xlink:label="lab_nbx_PropertyPlantAndEquipmentIncludingRightOfUseAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="fr">Immobilisations Corporelles Et Incorporant Les Actifs De Droit D'Usage</link:label>
    <link:label id="lab_nbx_PropertyPlantAndEquipmentIncludingRightOfUseAssets_documentation_fr" xlink:label="lab_nbx_PropertyPlantAndEquipmentIncludingRightOfUseAssets" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Immobilisations Corporelles Et Incorporant Les Actifs De Droit D'Usage</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_nbx_PropertyPlantAndEquipmentIncludingRightOfUseAssets" xlink:href="nbx-2024-12-31.xsd#nbx_PropertyPlantAndEquipmentIncludingRightOfUseAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nbx_PropertyPlantAndEquipmentIncludingRightOfUseAssets" xlink:to="lab_nbx_PropertyPlantAndEquipmentIncludingRightOfUseAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_nbx_AdjustmentsForDecreaseIncreaseInOtherReceivables_label_fr" xlink:label="lab_nbx_AdjustmentsForDecreaseIncreaseInOtherReceivables" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="fr">Augmentation (Diminution) Des Autres créances</link:label>
    <link:label id="lab_nbx_AdjustmentsForDecreaseIncreaseInOtherReceivables_documentation_fr" xlink:label="lab_nbx_AdjustmentsForDecreaseIncreaseInOtherReceivables" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Adjustments For Decrease (Increase) In Other Receivables</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_nbx_AdjustmentsForDecreaseIncreaseInOtherReceivables" xlink:href="nbx-2024-12-31.xsd#nbx_AdjustmentsForDecreaseIncreaseInOtherReceivables"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nbx_AdjustmentsForDecreaseIncreaseInOtherReceivables" xlink:to="lab_nbx_AdjustmentsForDecreaseIncreaseInOtherReceivables" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital_57e4374e-4f83-46c4-9832-87b8e71e0809_totalLabel_fr" xlink:label="lab_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="fr">Flux de trésorerie liés aux activités opérationnelles avant impôt et variation du besoin en fonds de roulement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital" xlink:to="lab_ifrs-full_CashFlowsFromUsedInOperationsBeforeChangesInWorkingCapital" xlink:type="arc" order="1"/>
    <link:label id="lab_nbx_OtherCurrentLiabilitiesIncludingSocialSecurityPayablesandTaxesotherthanIncomeTax_label_fr" xlink:label="lab_nbx_OtherCurrentLiabilitiesIncludingSocialSecurityPayablesandTaxesotherthanIncomeTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="fr">Autres Passifs Courants, Y Compris Les Dettes Sociales Et Les Taxes Autres Que L'impôt Sur Le Revenu</link:label>
    <link:label id="lab_nbx_OtherCurrentLiabilitiesIncludingSocialSecurityPayablesandTaxesotherthanIncomeTax_documentation_fr" xlink:label="lab_nbx_OtherCurrentLiabilitiesIncludingSocialSecurityPayablesandTaxesotherthanIncomeTax" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Other Current Liabilities Including Social Security Payables and Taxes other than Income Tax</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_nbx_OtherCurrentLiabilitiesIncludingSocialSecurityPayablesandTaxesotherthanIncomeTax" xlink:href="nbx-2024-12-31.xsd#nbx_OtherCurrentLiabilitiesIncludingSocialSecurityPayablesandTaxesotherthanIncomeTax"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nbx_OtherCurrentLiabilitiesIncludingSocialSecurityPayablesandTaxesotherthanIncomeTax" xlink:to="lab_nbx_OtherCurrentLiabilitiesIncludingSocialSecurityPayablesandTaxesotherthanIncomeTax" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_OperatingExpense_63234c35-c6b9-490a-aff3-74fbc1570254_totalLabel_fr" xlink:label="lab_ifrs-full_OperatingExpense" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="fr">Total des charges opérationnelles</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_OperatingExpense" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_OperatingExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_OperatingExpense" xlink:to="lab_ifrs-full_OperatingExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncreaseDecreaseInWorkingCapital_75df41f5-f870-44b7-bf51-8ffd6c4f5e0b_totalLabel_fr" xlink:label="lab_ifrs-full_IncreaseDecreaseInWorkingCapital" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="fr">Variation du besoin en fonds de roulement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncreaseDecreaseInWorkingCapital" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_IncreaseDecreaseInWorkingCapital"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncreaseDecreaseInWorkingCapital" xlink:to="lab_ifrs-full_IncreaseDecreaseInWorkingCapital" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_IncomeTaxesPaidClassifiedAsOperatingActivities_cbf484bf-83ac-42a6-813e-12a9ba957903_negatedLabel_fr" xlink:label="lab_ifrs-full_IncomeTaxesPaidClassifiedAsOperatingActivities" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="fr">Impôts sur le résultat payés, classés dans les activités opérationnelles</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_IncomeTaxesPaidClassifiedAsOperatingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_IncomeTaxesPaidClassifiedAsOperatingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_IncomeTaxesPaidClassifiedAsOperatingActivities" xlink:to="lab_ifrs-full_IncomeTaxesPaidClassifiedAsOperatingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_nbx_RefundLiabilitiesCurrent_label_fr" xlink:label="lab_nbx_RefundLiabilitiesCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="fr">Passif de remboursement - part courante</link:label>
    <link:label id="lab_nbx_RefundLiabilitiesCurrent_documentation_fr" xlink:label="lab_nbx_RefundLiabilitiesCurrent" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Refund Liabilities, Current</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_nbx_RefundLiabilitiesCurrent" xlink:href="nbx-2024-12-31.xsd#nbx_RefundLiabilitiesCurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nbx_RefundLiabilitiesCurrent" xlink:to="lab_nbx_RefundLiabilitiesCurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInOperatingActivities_147ff38f-bacb-4943-af3b-7f3aeb8d72fb_totalLabel_fr" xlink:label="lab_ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="fr">Flux nets de trésorerie liés aux activités opérationnelles</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_CashFlowsFromUsedInOperatingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:to="lab_ifrs-full_CashFlowsFromUsedInOperatingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_AdjustmentsForGainLossOnDisposalsPropertyPlantAndEquipment_94d9e0b8-9839-49df-b3de-77d3cae8a6af_verboseLabel_fr" xlink:label="lab_ifrs-full_AdjustmentsForGainLossOnDisposalsPropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="fr">Perte sur cession</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_AdjustmentsForGainLossOnDisposalsPropertyPlantAndEquipment" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_AdjustmentsForGainLossOnDisposalsPropertyPlantAndEquipment"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_AdjustmentsForGainLossOnDisposalsPropertyPlantAndEquipment" xlink:to="lab_ifrs-full_AdjustmentsForGainLossOnDisposalsPropertyPlantAndEquipment" xlink:type="arc" order="1"/>
    <link:label id="lab_nbx_IncreaseDecreaseInRefundLiability_label_fr" xlink:label="lab_nbx_IncreaseDecreaseInRefundLiability" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="fr">Passifs de remboursement</link:label>
    <link:label id="lab_nbx_IncreaseDecreaseInRefundLiability_documentation_fr" xlink:label="lab_nbx_IncreaseDecreaseInRefundLiability" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Augmentation (diminution) de la responsabilité de remboursement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_nbx_IncreaseDecreaseInRefundLiability" xlink:href="nbx-2024-12-31.xsd#nbx_IncreaseDecreaseInRefundLiability"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nbx_IncreaseDecreaseInRefundLiability" xlink:to="lab_nbx_IncreaseDecreaseInRefundLiability" xlink:type="arc" order="1"/>
    <link:label id="lab_nbx_CashFlowFromOperatingActivitiesAfterTaxAndBeforeChangeInWorkingCapitalRequirement_8237dc1e-89cb-4e6e-8d89-f9bc3b216eea_totalLabel_fr" xlink:label="lab_nbx_CashFlowFromOperatingActivitiesAfterTaxAndBeforeChangeInWorkingCapitalRequirement" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="fr">Flux de trésorerie liés aux activités opérationnelles après impôt et avant variation du besoin en fonds de roulement</link:label>
    <link:label id="lab_nbx_CashFlowFromOperatingActivitiesAfterTaxAndBeforeChangeInWorkingCapitalRequirement_label_fr" xlink:label="lab_nbx_CashFlowFromOperatingActivitiesAfterTaxAndBeforeChangeInWorkingCapitalRequirement" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="fr">Flux De Trésorerie Provenant Des Activités Opérationnelles Après Impôts Et Avant Variation Du Besoin En Fonds De Roulement</link:label>
    <link:label id="lab_nbx_CashFlowFromOperatingActivitiesAfterTaxAndBeforeChangeInWorkingCapitalRequirement_documentation_fr" xlink:label="lab_nbx_CashFlowFromOperatingActivitiesAfterTaxAndBeforeChangeInWorkingCapitalRequirement" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Flux De Trésorerie Provenant Des Activités Opérationnelles Après Impôts Et Avant Variation Du Besoin En Fonds De Roulement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_nbx_CashFlowFromOperatingActivitiesAfterTaxAndBeforeChangeInWorkingCapitalRequirement" xlink:href="nbx-2024-12-31.xsd#nbx_CashFlowFromOperatingActivitiesAfterTaxAndBeforeChangeInWorkingCapitalRequirement"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nbx_CashFlowFromOperatingActivitiesAfterTaxAndBeforeChangeInWorkingCapitalRequirement" xlink:to="lab_nbx_CashFlowFromOperatingActivitiesAfterTaxAndBeforeChangeInWorkingCapitalRequirement" xlink:type="arc" order="1"/>
    <link:label id="lab_nbx_AdjustmentsForDecreaseIncreaseInReceivablesFromTaxesOtherThanIncomeTax_label_fr" xlink:label="lab_nbx_AdjustmentsForDecreaseIncreaseInReceivablesFromTaxesOtherThanIncomeTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="fr">Augmentation ( Diminution) Des Créances Fiscales Autres Que L'Impôt Sur Le Revenu</link:label>
    <link:label id="lab_nbx_AdjustmentsForDecreaseIncreaseInReceivablesFromTaxesOtherThanIncomeTax_documentation_fr" xlink:label="lab_nbx_AdjustmentsForDecreaseIncreaseInReceivablesFromTaxesOtherThanIncomeTax" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Augmentation ( Diminution) Des Créances Fiscales Autres Que L'Impôt Sur Le Revenu</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_nbx_AdjustmentsForDecreaseIncreaseInReceivablesFromTaxesOtherThanIncomeTax" xlink:href="nbx-2024-12-31.xsd#nbx_AdjustmentsForDecreaseIncreaseInReceivablesFromTaxesOtherThanIncomeTax"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nbx_AdjustmentsForDecreaseIncreaseInReceivablesFromTaxesOtherThanIncomeTax" xlink:to="lab_nbx_AdjustmentsForDecreaseIncreaseInReceivablesFromTaxesOtherThanIncomeTax" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInFinancingActivities_56346cfa-3746-4bee-8ecd-1cc23a4ed6f6_totalLabel_fr" xlink:label="lab_ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="fr">Flux net de trésorerie liés aux activités de financement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_CashFlowsFromUsedInFinancingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:to="lab_ifrs-full_CashFlowsFromUsedInFinancingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_nbx_CostOfNetFinancialDebt_label_fr" xlink:label="lab_nbx_CostOfNetFinancialDebt" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="fr">Coût De L'endettement Financier Net</link:label>
    <link:label id="lab_nbx_CostOfNetFinancialDebt_documentation_fr" xlink:label="lab_nbx_CostOfNetFinancialDebt" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="fr">Cost of Net Financial Debt</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_nbx_CostOfNetFinancialDebt" xlink:href="nbx-2024-12-31.xsd#nbx_CostOfNetFinancialDebt"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nbx_CostOfNetFinancialDebt" xlink:to="lab_nbx_CostOfNetFinancialDebt" xlink:type="arc" order="1"/>
    <link:label id="lab_ifrs-full_CashFlowsFromUsedInInvestingActivities_64b9a8b8-7247-4254-8a25-849a02f220c8_totalLabel_fr" xlink:label="lab_ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="fr">Flux nets de trésorerie liés aux activités d'investissement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ifrs-full_CashFlowsFromUsedInInvestingActivities" xlink:href="https://xbrl.ifrs.org/taxonomy/2022-03-24/full_ifrs/full_ifrs-cor_2022-03-24.xsd#ifrs-full_CashFlowsFromUsedInInvestingActivities"/>
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