Factory Price CAS 68391-31-1 Basic Yellow 57 for Semi-Permanent Hair Dye

Product Description

TFactory Price CAS 68391-31-1 Basic Yellow 57 for Semi-permanent Hair Dye

Item	Standard			Test Results
Identification	A.H-NMR:Comply with the structure			Complies
	B.LC-MS:Comply with the structure			Complies
	C.The IR spectrum of sample should be identical with that of reference standard.			Complies
	D.HPLC-ESI-MS The retention time of the major peak in the chromatogram of the Assay preparation corresponds to that in the chromatogram of the Standard preparation, as obtained in the Assay.			Complies
Loss on drying	≤2.0%			0.19%
Heavy metals	≤10 ppm			<10ppm
Water	≤1.0%			0.1%
Sulphated ash	≤0.5% determined on 1.0 g.			0.009%
Residue on ignition	≤0.1%			0.03%
Related Substances	Unspecified impurities: for each impurity		≤0.10%	<0.10%
	Total Impurities		≤0.5%	0.18%
Purity	≥99.0%			99.7%
Assay	99.0%~101.0% (anhydrous substance).			99.8%
Storage	Preserve in well-closed, light-resistant and airtight containers.			Comp

Q1: 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) inspection

Q5: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,