Order No. Quantity
A1419,1000 1 kg

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Specification

Specification Download specification (PDF)
Synonym L-2-Amino-3-Hydroxybutyric Acid 
We herewith confirm that this product meets the requirements of the European Pharmacopoeia (Ph.Eur. 11.0) and the US Pharmacopoeia (USP 43). 
state of matter Solid 
Solubility (25°C) 90 g/L (H2O) 
Formula C4H9NO3 
M 119.12 g/mol 
CAS-No.: 72-19-5 
HS-No.: 29225000 
EC-No.: 200-774-1 
Storage: RT 
LGK: 10 - 13 
WGK:
• All amino acids from AppliChem are of non-animal origin! 
Specification  
Assay (titr., calc. on dried subst.) 99.0 - 101.0 % 
α20°C/D; 6 %, H2O, calc. on dried subst. -27.6° - -29.0° 
α25°C/D; 6 %, H2O -26.7° - -29.1° 
Appearance of solution passes test 
Identity passes test 
pH (2.5 %; H2O) 5.0 - 6.5 
pH (5 %; H2O) 5.0 - 6.5 
Heavy metals (as Pb) max. 0.0015 % 
Sulfated ash max. 0.1 % 
Loss on drying (3 h; 105°C) max. 0.2 % 
Ammonium max. 0.02 % 
Chloride max. 0.02 % 
Sulfate max. 0.03 % 
Fe max. 0.001 % 
Ninhydrin positive substances (HPLC)  
each individual impurity max. 0.2 % 
Total impurities max. 0.5 % 
Ninhydrin positive substances (TLC)  
Each individual impurity max. 0.5 % 
Total impurities max. 2 %