L-Valine - CAS No.：72-18-4 - HUAMAO (China Manufacturer) - Fine Chemicals - Chemicals Products - DIYTrade China manufacturers suppliers

L-Valine

L-Valine

Model:	CAS No.：72-18-4
Brand:	HUAMAO
Origin:	Made In China
Category:	Chemicals / Fine Chemicals
Label:	-
Price:	US $10 / KG
Min. Order:	25 KG

Product Description

【Package】Fiber Drum outside,double PE bags inside .(25kgs)

【Storage】Cool, dry, dark in closed containers; recommended limit 2 years.

【Quality Standard】

Item	CP2010	EP5	AJI92	USP24
Assay	≥98.5%	98.5～101.0%	98.5～101.0%	98.5～101.5%
pH	5.5～6.5		5.5～6.5	5.5～7.0
Specific rotation[a]D₀²⁰	+26.6°～+28.8°	+26.5°～+29.0°	+27.6～+28.7
[a]D₀²⁵				+26.6～+28.8
Transmittance(T₄₃₀)	clear & colorless ≥98.0%	clear & colorless ≥98.0%	≥98.0%
Chloride(Cl)	≤0.02%	≤200ppm	≤0.02%	≤0.05%
Ammonium(NH₄)	≤0.02%	≤200ppm	≤0.020%
Sulfate(SO₄)	≤0.02%	≤300ppm	≤0.02%	≤0.03%
Iron(Fe)	≤10ppm	≤10ppm	≤10ppm	≤30ppm
Heavy metals(Pb)	≤10ppm	≤10ppm	≤10ppm	≤15ppm
Arsenic	≤1ppm		≤1 ppm	≤1.5ppm
Other amino acids	≤0.5%		≤0.5%
Ninhydrin-positive substances		conforms
Loss on drying	≤0.20%	≤0.50%	≤0.2%	≤0.3%
Residue on ignition	≤0.10%	≤0.10%	≤0.1%	≤0.1%
Organic volatile impurities				Conforms
Endotoxin	≤20EU/g

Member Information

NINGBO HUAMAO IMP.&EXP. CO.,LTD
Country/Region:	Zhe Jiang - China
Business Nature:	Manufacturer
Phone:	27729110
Contact:	Mavis (sales Manager)
Last Online:	01 Aug, 2014