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Factory Price CAS 68391-31-1 Basic Yellow 57 for Semi-Permanent Hair Dye1
Pigment DyeDyeBasic Dyes
Hebei Yingye New Energy Technology Co., Ltd
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Product DescriptionProduct DescriptionTFactory Price CAS 68391-31-1 Basic Yellow 57 for Semi-permanent Hair DyeSpecificationItemStandardTest ResultsIdentificationA.H-NMR:Comply with the structureCompliesB.LC-MS:Comply with the structureCompliesC.The IR spectrum of sample should be identical with that of reference standard.CompliesD.HPLC-ESI-MSThe retention time of the major peak in the chromatogram of the Assay preparation corresponds to that in the chromatogram of theStandard preparation, as obtained in the Assay.CompliesLoss on drying≤2.0%0.19%Heavy metals≤10 ppm<10ppmWater≤1.0%0.1%Sulphated ash≤0.5% determined on 1.0 g.0.009%Residue on ignition≤0.1%0.03%Related SubstancesUnspecified impurities: for each impurity≤0.10%<0.10%Total Impurities≤0.5%0.18%Purity≥99.0%99.7%Assay99.0%~101.0% (anhydrous substance).99.8%StoragePreserve in well-closed, light-resistant and airtight containers.CompPacking & DeliveryFAQQ1: Are manufacturer or trading company?A: We are manufacturer. You are welcome to visit our factory.Q2: How to contact with us? Q3:Which kind of payment terms do you accept?A: For small order,you can pay on ****** by trade assurance. For bulk order, you can pay to our company's bank account.Q4:How can I make payment safe?A: The whole transaction is under ******'s (Third party) inspectionQ5:How can I get a sample?A few sample is free but you need to pay for the shipping cost.we normally send sample by FEDEX, DHL,
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