Factory Supply Best Selling Carbocisteine/S-Carboxymethyl-L-Cysteine CAS 638-23-3

• CAS No.: 638-23-3
• Formula: C5h9no4s
• EINECS: 211-327-5
• Type: Pharmaceutical Intermediates
• Appearance: Powder
• Quality: Refined
• Model NO.: 638-23-3
• Colour: White
• Sample: Available
• Self-Life: 2 Years
• Storage: Cool Dry Place
• MOQ: 25kg
• Transport Package: Drum
• Specification: Powder
• Trademark: Labeyond
• Origin: China
• Production Capacity: 500mt/Month

Product Description

Carbocisteine, also called carbocysteine, is a mucolytic that reduces the viscosity of sputum and so can be used to help relieve the symptoms of chronic obstructive pulmonary disorder (COPD) and bronchiectasis by allowing the sufferer to bring up sputum more easily.

Test Items	Specifications	Results
Appearance	White crystalline powder	Qualified
Identification	A. Specific rotation (-32.5°~-35.5°) B. TLC: meet the requirement C. Reaction of magnesium: positive	-33.5° Conforms Positive
Appearance of solution	Clear and colourless	Conforms
Chloride(Cl)	≤0.15%	Conforms
Ninhydrin-positive substances	Not more intense than the spot with reference solution(0.5%)	Conforms
Sulfate(SO4)	≤0.03%	Conforms
Heavy metals(Pb)	≤10PPm	Conforms
Loss on drying	≤0.5%	0.4%
Residue on ignition	≤0.5%	0.3%
Assay	98.5~100.5%	99.3%
PH	2.8-3.0	2.9
Conclusions:	Material conforms to the EP8 standard.