Sure Chemical Co., Ltd. Shijiazhuang
Main products:Food Additives,Pharmaceutical Raw Materials,Mining Chemicals,Concrete Admixtures,Water Treatment Chemicals
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Contact Us
  • Contact Person : Ms. Li Selina
  • Company Name : Sure Chemical Co., Ltd. Shijiazhuang
  • Tel : 86-311-85697096
  • Fax : 86-311-85697098
  • Address : Hebei,shijiazhuang,Rm 3-2-02 5Fl, Federal Oriental Pearl Building,No.66, Zhaiying South Street,Shijiazhuang,Hebei,China
  • Country/Region : China
  • Zip : 050030

L-CYSTINE

L-CYSTINE
Product Detailed
Related Categories:Pharmaceutical
Related Product Searches:L-CYSTINE,High Quality,L-CYSTINE, L-CYSTINE,96
Molecular Formula: C6H12N2O4S2 Molecular Weight: 240.29 Cas No: [56-89-3]

Characteristics: White crystals or crystalline powder; tasteless. Practically insoluble in water, in ethanol and in ether. Dissolves in dilute HCl. Quality Standards: AJI92, FCCIV, In-house (ref USP24)

ItemSpecifications (AJI92 )USP 24FCC IV
AppearanceWhite crystal or crystalline powder; tasteless
DescriptionWhite crystals or crystalline powder
IdentificationInfrared absorption spectrum
Specific rotation[a]D20° -215 °- -225 °-215 ° - -225 °-215 ° - -225 °
State of solution(Transmittance)≥ 98.0%------
Chloride(CL)≤ 0.020%≤ 0.020%---
Ammonium(NH4)≤ 0.02%------
Sulfate(SO4)≤ 0.020%≤ 0.020%---
Iron(Fe)≤ 20PPm≤ 20PPm---
Heavy metals(Pb)≤ 10PPm≤ 10PPm20ppm
Arsenic(As2O3)≤ 1PPm------
Other amino acidsConforms------
Loss on drying≤ 0.20%≤ 0.20%≤ 0.20%
Residue on ignition (Sulfated)≤ 0.10%≤ 0.10%≤ 0.10%
Assay98.5-101.0%98.5-101.0%98.5-101.0%
PH5.0-6.55.0-6.5---
Organic Volatileimpurities---Meets the requirements---

Packaging and Storage: In 25kgs f iber drum double polyethylene bags inside; Preserve in well-closed containers, at controlled room temperature.

L-CYSTINE



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