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L-Cysteine HCL Anhydrous
|
Product |
L-Cysteine Hydrochloride Anhydrous |
|
CAS No. |
52-89-1 |
|
EINECS |
200-157-7 |
|
Molecular Formula |
C3H8ClNO2S |
|
Molecular Weight |
157.62 |
|
Structural Formula |
|
|
Quality Standard |
AJI92 |
|
Packing |
25kg per drum with inner PE bag |
|
Shelf Life |
12 Months Preserve in well-closed containers and protected from light |
|
Specification |
Standard |
|
Identification |
Infrared Absorption |
|
Appearance |
White crystalline powder |
|
Specific rotation［α］D20 |
+5.6o~+8.9o |
|
State solution(Transmittance) |
Clear and colorless Not less than 98.0% |
|
Chloride(Cl) |
22.30%~22.60% |
|
Ammonium(NH4) |
Not more than 0.02% |
|
Sulphate (SO4) |
Not more than 0.02% |
|
Iron (Fe) |
Not more than 10ppm |
|
Heavy metals (Pb) |
Not more than 10ppm |
|
Arsenic(As2O3) |
Not more than 1ppm |
|
Other Amino acids |
Chromatographically Not detectable |
|
Loss on drying |
Not more than 1.0% |
|
Residue on ignition(Sulfated) |
Not more than 0.1% |
|
Assay |
98.0~102.0% |
|
pH value |
1.5~2.0 |
|
Total plate count |
≤ 1000cfu/g |
|
Yeast & Molds |
≤ 100cfu/g |
|
Coliforms |
≤ 10cfu/g |
|
E Coli |
Negative |
|
Salmonella |
Negative |
|
Pseudomonas |
Negative |
|
S.Aureus |
Negative |
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