Product No.: CY563CAS: 52-90-4In Stock
L-半胱氨酸 L-Cysteine
This product undergoes strict bacterial endotoxin and microbial limit controls, suitable for biologics and injectable-grade R&D with stringent pyrogen requirements.
Select Spec* COA batch numbers are updated in real-time
Select Spec
* COA batch numbers are updated in real-time5kg/Drum
$916.00
Stock: 100 unit
25kg/Drum
$4,351.00
Stock: 100 unit
Quantity
Remaining 75 unit
Selected Configuration1kg/Bag × 1
Total$244.00
Application Scenarios
CHO Cell CultureVaccine ProductionMonoclonal Antibody R&D
Quality Specifications
外观 Appearance
White crystals or crystalline powder
鉴别 Identification
Infrared Absorption
比旋度 Specific rotation [α]D20
+8.3° ~ +9.5°
溶液外观（透光率） State of solution (Transmittance)
≥ 95.0%
氯化物 Chloride(Cl)
≤ 0.04%
铵盐 Ammonium(NH4)
≤ 0.02%
硫酸盐 Sulfate(SO4)
≤ 0.030%
铁 Iron(Fe)
≤ 10ppm
重金属 Heavy metals (Pb)
≤ 10ppm
砷 Arsenic(as As2O3)
≤ 1ppm
其他氨基酸 Other amino acids
≤ 1.0%
干燥失重 Loss on Drying
≤ 0.5%
灼烧残渣 Residue on ignition(sulfated)
≤ 0.1%
含量 Assay
98.0% ~ 101.0% (on dried basis)
pH
4.5 ~ 5.5
Total plate count
Less than 20 cfu/g
Yeast & molds
Less than 10 cfu/g
Bacterial Endotoxin
Less than 20EU/g