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L-Cysteine HCL,China price supplier

L-Cysteine HCL

FOB Price:Price can be negotiated

Update Time:2011-06-09

Product Description

l-cysteine HCL reach USP, AJI

Item	Specifications
Item	USP	AJI
Appearance	White crystals or crystalline powder; strongly Acid taste.
Identification	Infrared Absorption	---
Specific optical rotation	+5.6 °- +8.9 °	+5.5 °- +7.0 °
State of solution (Transmittance)	---	≥ 98.0% clear and colorless
Chloride (Cl)	---	19.89-20.29%
Ammonium(NH ₄ )	---	≤ 0. 002%
Sulfate	≤ 0. 03 %	≤ 0. 020%
Iron	≤ 0. 003 %	10ppm
Heavy Metals (as Pb),	≤ 0.00 15%	≤ 10ppm
Arsenic (as As),	---	≤ 1ppm
Other amino acids	---	Not detected
Organic volatile impurities	Meets the requirement	---
Loss on drying,	8-12 %	8.5-12 %
Residue on ignition,	c	≤ 0.1 0 %
Assay	98.5-101.5 %	9 9.0-10 0.5 %
pH value	---	1.5-2.0
Organic volatile impurities	Meets the requirement	---
Chromatographic purity	0.5% max Individual impurity, 2% max total	---

CAS No.: 7048-04-6

MF: C3H7NO2S.HCl.H2O

Type: Other

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Company Profile

Name: Changzhou Dahua Imp. and Exp. (Group) Corp., Ltd.

Address: Room 805 Heng Yuan Building, No.180 GuanHei West Road