L-Cystine 99%
4 Inquiries
56-89-3
Pharmaceutical Grade
99%
SHANGHAI
25kg/2kg Cardboard Drum
2017-04-28
Octocrylene,Etocrilene,Ethylhexyl Triazone,Tris Base,DL-Homocysteinethiolactone hydrochloride,Thiodiglycolic anhydride
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Product Description
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Seller Information
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Inquiry History
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Description
Product Name:L-Cystine
Product number:BJM-013CAS No.：56-89-3Molecule Formula：C6H12N2O4S2Molecule Weight：240.30Description：White crystals or crystalline powder; almost insoluble in water, practically insoluble in ethanol and in ether.Manufacture Standards: AJI92/EP5Specification:Specific rotation -215 - -225° Heavy metals ≤10ppm Water content ≤0.20% Residue on ignition ≤0.10% assay 98.5-101.0% pH 5.0-6.5 Mainly uses:Used in food additive, medicine and cosmetic etc.Packing:25kgs/ fiber drum.Basic Info-
Product Name:
(-)-Cystine
Other Name:L-Cystine;Cystine,L-;Bis(β-amino-β-carboxyethyl) disulfide;Cystine acid;β,β′-Diamino-β,β′-dicarboxydiethyl disulfide;Dicysteine;3,3′-Dithiobis(2-aminopropanoic acid);β,β′-Dithiodialanine;Cystine;L-Cysteine disulfide;Propanoic acid,3,3′-dithiobis[2-amino-,[R-(R*,R*)]-;(-)-Cystine;L-Cystin;L-(-)-Cystine;Oxidized L-cysteine;[R-(R*,R*)]-3,3′-Dithiobis[2-aminopropanoic acid];l-Cystine;L-Alanine,3,3′-dithiobis-;NSC 13203;24645-67-8;154605-69-3
CAS No.:56-89-3
Molecular Formula:C6H12N2O4S2
InChIKeys:InChIKey=LEVWYRKDKASIDU-IMJSIDKUSA-N
Molecular Weight:240.30000
Exact Mass:240.30
EC Number:206-486-2
UNII:48TCX9A1VT
DSSTox ID:DTXSID2046418
NCI Thesaurus Code:C29610
HScode:2930901000
Categories:
Characteristics-
PSA:
177.24000
XLogP3:-6.3
Appearance:DryPowder
Density:1.677 g/cm3
Melting Point:260.5 °C (decomp)
Boiling Point:468.2ºC at 760 mmHg
Flash Point:237ºC
Refractive Index:1.653
Water Solubility:H2O: 0.112 g/L (25 ºC);1 M HCl: 100 mg/mL
Storage Conditions:Store at RT.
PKA:1None
Dissociation Constants:1
Collision Cross Section:149.4 Ų [M+H]+ [CCS Type: DT, Method: single field calibrated with Agilent tune mix (Agilent)]|145 Ų [M+H]+ [CCS Type: TW, Method: calibrated with polyalanine]|149.4 Ų [M+H]+ [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|151.2 Ų [M+Na]+ [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|143 Ų [M-H]- [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|147.3 Ų [M+Na-2H]- [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|148.1 Ų [M+H]+ [CCS Type: TW, Method: calibrated with polyalanine and drug standards]|144.39 Ų [M-H]- [CCS Type: DT, Method: stepped-field]|150.08 Ų [M+H]+ [CCS Type: DT, Method: stepped-field]|151.81 Ų [M+Na]+ [CCS Type: DT, Method: stepped-field]|147.3 Ų [M-2H+Na]-
Hazard IdentificationClassification of the substance or mixture
Not classified.
GHS label elements, including precautionary statements
Pictogram(s) No symbol. Signal word No signal word
Hazard statement(s) none
Precautionary statement(s) Prevention none
Response none
Storage none
Disposal none
Other hazards which do not result in classification
no data available
Handling and StoragePrecautions for safe handling
Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.
Conditions for safe storage, including any incompatibilities
Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.
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Seller Information
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Business Type:
Manufactory
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Main Products:
Octocrylene,Etocrilene,Ethylhexyl Triazone,Tris Base,DL-Homocysteinethiolactone hydrochloride,Thiodiglycolic anhydride
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Location:
No .41 Optics Valley Avenue, East Lake High-tech Development Zone, Wuhan ,China
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Payment Terms:
TT against copy of documents,L/C,TT against B/L draft before shipment,100% TT in advance
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Average lead Time:
10
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Total Annual Revenue:
$2.5 million-$5 million
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Total Employees:
51-100
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Year of Establishment:
2013
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Certifications:
Trade Mark,ISO,Trade Mark
Wuhan BJM Pharm Inc. was found in 2013, located in Hubei Province, where has long history, rich culture, convenient traffic, beautiful environment and preferential policy.
We have two factories in Dezhou , Shandong and Xianning, Hubei. The factory covers an area of 48,000 square meters with the building area of 26,000 square meters. We are specialized in the manufacture of pharmaceutical intermediates and cosmetic additives with good inspection equipments and innovative R & D capability.
In 2006, We established Lingxian Microworld Chemical New Material Co,.Ltd.
In 2008, We passed ISO9001:2008 quality system certificate
In 2013, We established Wuhan Benjamin Pharmaceutical Chemical Co.,Ltd , and obtain self-operation Import & Export right, mainly responsible for domestic and foreign business. At the same time, we set up R&D lab in Wuhan,Hubei province, can undertake various custom synthesis of intermediates and APIs.
In 2016, successfully invest to Hubei Betterorganic Technology Inc, and obtain a registered trademark “ BJM ”.
We are specialized in the R&D ,production and sales of Erdosteine intermeditae,Pirfenidone, Letrozole and related intermediates.
We stick to the principle as: people-oriented, customer first, Hope to establish a win-win business relationship with all friends
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Inquiry History4 Inquiries
Country Product Purchase Quantity Date Posted 
Australia
L-Cystine
100.00 KG Jun 1, 2025 
India
L-CYSTINE
1.00 KG Mar 31, 2026
India
L-CYSTINE
1.00 KG Aug 7, 2025
India
L-CYSTEINE
50.00 KG Mar 25, 2025 Post an enquiry for this product
