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L-Threonine CAS 72-19-5
Amino Acid
Chemical Name: | L-2-Amino-3-hydroxybutyric acid; |
Structure Formula: |
|
Molecular Formula: |
C4H9NO3 |
Molecular Weight: |
119.12 |
Cas No: |
[72-19-5] |
Characteristics: |
White crystalline powder |
Quality Standards: |
USP24, FCCIV, AJI97 and etc. |
Item
Specification
USP24
FCCIV
AJI97
Appearance
White crystals or crystalline powder
Assay, %(on dried basis)
98.5~101.5
98.5~101.5
98.5~101.0
Specific optical rotation
-26.7o~ -29.1o
-26.5o~ -29.0o
-27.6o~ -29.0o
Transmittance
- - -
- - -
≥98.0
pH Value
5.0~6.5
- - -
5.2~6.2
Loss on drying,%
≤0.2
≤0.3
≤0.2
Heavy metals (as Pb),%
≤0.0015
≤0.002
≤0.001
Residue on ignition,%
≤0.4
≤0.1
≤0.1
Chloride (as Cl),%
≤0.05
- - -
≤0.02
Sulfate (as SO4),%
≤0.03
- - -
≤0.02
Ammonium (as NH4),%
- - -
- - -
≤0.02
Arsenic (as As),%
≤0.00015
≤0.00015
≤0.0001
Iron,%
≤0.003
- - -
≤0.001
Other amino acids
- - -
- - -
Not detd.
Organic volatile impurities
Meets the requirement
- - -
Meets the requirement
The Characteristics and Uses:
Package and Transport:
Handle with care in order to avoid damaging the package. Protect them from sunshine and rain. Do not transport them together with poisonous or harmful goods. This product is a non-dangerous product and can be transported as a general chemical product.
Storage:
L-Arginine base | |
L-Arginine HCL | L-Norvaline |
L-Alanine | L-Ornithine HCL |
L-Aspartic acid | L-Phenylalanine |
L-Asparagine Mono | L-Proline |
L-Citrulline | L-Threonine |
L-Cysteine HCL Anhydrous | L-Tyrosine |
L-Cysteine HCL Monohydrate | L-TryptoPhan |
L-Cystine base | L-Valine |
L-Glutamic acid | D-Proline |
L-Glutamine | DL-Methionine |
L-Isoleucine | N-Acetyl-DL-Leucine |
L-Leucine | N-Acetyl-DL-Methionine |
L-Hydroxyproline | N-Acetyl-L-Cysteine |
L-Histidine base | N-Acetyl-L-Tyrosine |
L-Histidine HCL | N-Acetyl-L-Glutamine |
L-Lysine HCL | N-Acetyl-L-Methionine |
L-Malic acid | S-Carboxymethyl-L-Cysteine |
L-Methionine | Taurine |
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