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  <xs:element id="cdcx_TwoCustomersMember" abstract="true" name="TwoCustomersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cdcx_FinancialAssetPurchasedUnderAgreementToResellWorkingCapitalAdjustment" abstract="false" name="FinancialAssetPurchasedUnderAgreementToResellWorkingCapitalAdjustment" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cdcx_ConsumerProductsSegmentMember" abstract="false" name="ConsumerProductsSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cdcx_IngredientsSegmentMember" abstract="false" name="IngredientsSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cdcx_AnalyticalReferenceStandardsAndServicesSegmentMember" abstract="false" name="AnalyticalReferenceStandardsAndServicesSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cdcx_PharmaceuticalsSegmentMember" abstract="true" name="PharmaceuticalsSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cdcx_NIAGENRelatedMember" abstract="true" name="NIAGENRelatedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cdcx_TRUNIAGENConsumerProductMember" abstract="true" name="TRUNIAGENConsumerProductMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cdcx_FoodGradeNIAGENMember" abstract="true" name="FoodGradeNIAGENMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cdcx_PharmaceuticalGradeNIAGENMember" abstract="true" name="PharmaceuticalGradeNIAGENMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cdcx_OtherGoodsAndServicesMember" abstract="true" name="OtherGoodsAndServicesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cdcx_OtherIngredientsMember" abstract="true" name="OtherIngredientsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cdcx_ReferenceStandardsMember" abstract="true" name="ReferenceStandardsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cdcx_ServicesAndOtherMember" abstract="true" name="ServicesAndOtherMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cdcx_CustomerAMember" abstract="true" name="CustomerAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cdcx_CustomerBMember" abstract="true" name="CustomerBMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cdcx_CustomerCMember" abstract="true" name="CustomerCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cdcx_LesseeOperatingLeaseLeaseNotYetCommencedRentableArea" abstract="false" name="LesseeOperatingLeaseLeaseNotYetCommencedRentableArea" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:areaItemType"/>
  <xs:element id="cdcx_TotalOperatingLeaseExpenses" abstract="false" name="TotalOperatingLeaseExpenses" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cdcx_ShareBasedPaymentArrangementOptionOrStockAppreciationRightMember" abstract="true" name="ShareBasedPaymentArrangementOptionOrStockAppreciationRightMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cdcx_FullValueAwardMember" abstract="true" name="FullValueAwardMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cdcx_ShareBasedPaymentArrangementTrancheFourMember" abstract="true" name="ShareBasedPaymentArrangementTrancheFourMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cdcx_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAllowableUnderThePlanNewShares" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAllowableUnderThePlanNewShares" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="cdcx_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAllowableUnderThePlanInducementAward" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAllowableUnderThePlanInducementAward" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="cdcx_ShareBasedCompensationArrangementByShareBasedPaymentAwardReductionInSharesAllowableUnderThePlan" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardReductionInSharesAllowableUnderThePlan" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="cdcx_WeightedAveragePriceThresholdsNumberOfTradingDaysMinimum" abstract="false" name="WeightedAveragePriceThresholdsNumberOfTradingDaysMinimum" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="cdcx_ShareBasedCompensationArrangementByShareBasedPaymentAwardPurchasePeriod" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardPurchasePeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="cdcx_ServicePeriodBasedStockOptionsMember" abstract="false" name="ServicePeriodBasedStockOptionsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cdcx_WeightedAverageIntrinsicValueEndingBalance" abstract="false" name="WeightedAverageIntrinsicValueEndingBalance" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cdcx_WeightedAverageIntrinsicValueExercised" abstract="false" name="WeightedAverageIntrinsicValueExercised" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="cdcx_ElysiumHealthLLCMember" abstract="true" name="ElysiumHealthLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="cdcx_PurchaseObligationsAutomaticRenewalPeriod" abstract="false" name="PurchaseObligationsAutomaticRenewalPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="cdcx_PurchaseObligationsAnticipatedPurchaseRequirementsRollingMonthlyForecastsProvidedPeriod" abstract="false" name="PurchaseObligationsAnticipatedPurchaseRequirementsRollingMonthlyForecastsProvidedPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="cdcx_PurchaseObligationsAnticipatedPurchaseRequirementsRollingMonthlyForecastsProvidedBindingUponAcceptancePeriod" abstract="false" name="PurchaseObligationsAnticipatedPurchaseRequirementsRollingMonthlyForecastsProvidedBindingUponAcceptancePeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="cdcx_NumberOfLumpSumPayments" abstract="false" name="NumberOfLumpSumPayments" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="cdcx_LitigationSettlementInterestRate" abstract="false" name="LitigationSettlementInterestRate" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="cdcx_SupplyAgreementTerm" abstract="false" name="SupplyAgreementTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
</xs:schema>
