COA Center
OR
MSDS/SDS Center
Deutsch
English
French
Korean
Portuguese
Spanish
Thai
Turkish
Advanced Search
Chemicals
Lab Chemicals by Category
Advanced Search
COA Center
MN Filter
Filtration
Rapid Tests
Chromatography
Company Profile
History
Vision, Values, Commitment
From Our Chairman
What We Offer
Privacy Policy
Manufacturing
Overview
Facility Tour
Certification
EHS
Our Integrated Management System
Support
Catalogs & Price Lists
Product Brochures
Packings
Contact Us
Find a Dealer
Safety Tips
Storage Practices
Categorical Storage
Recommendations
Resources
Hazard Symbols
GHS Labeling
Precautionary Statements
Hazard Statements
Conversion Charts
Fractions
Particle Size
Periodic Table
MGT-7 Form
L-CYSTEINE For Biochemistry
Product Code:
03140
Specifications
Appearance
Colorless crystalline powder
Assay
Min. 99%
Specific optical rotation ([α]20/D)
+8.0° to +9.0°
UV absorbance
Max. 0.5
Loss on drying (at 105°C; 4 hrs)
Max. 0.3%
Chloride (Cl)
Max. 0.002%
Sulphate (SO4)
Max. 0.01%
Heavy metal (as Pb)
Max. 0.001%
Ammonium (NH4)
Max. 0.01%
Foreign amino acids
Max. 0.5%
Other ninhydrin positive substances (as glycine)
Max. 0.1%
Home
Chemicals
Amino Acids & Derivatives
COA