L- Cystine Nitrate 98.0% White crystalline powder
4 Inquiries
56-89-3
Pharmaceutical Grade
99%
hongkong
Shengyufan International Trade Co., Ltd.
25kg/drum
Yes
2029-06-26
Cosmetic raw material,API,Retatrutide,Tirzepatide,Semaglutide,intermediates
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Product Description
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Seller Information
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Inquiry History
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DescriptionECHEMI Editorial ReferenceL-Cystine is an amino acid and intracellular thiol, which plays a critical role in the regulation of cellular processes.
DryPowder|Solid
L-cystine is the L-enantiomer of the sulfur-containing amino acid cystine. It has a role as a flour treatment agent, a human metabolite, a Saccharomyces cerevisiae metabolite, a mouse metabolite and an EC 1.2.1.12 (aspartate-semialdehyde dehydrogenase) inhibitor. It is a cystine, a L-cysteine derivative and a non-proteinogenic L-alpha-amino acid. It is a conjugate acid of a L-cystine anion. It is an enantiomer of a D-cystine. It is a tautomer of a L-cystine zwitterion.|A covalently linked dimeric nonessential amino acid formed by the oxidation of cysteine. Two molecules of cysteine are joined together by a disulfide bridge to form cystine.|Cystine is not considered one of the 20 amino acids, Cystine is a sulfur-containing derivative obtained from oxidation of cysteine amino acid thiol side chains. It functions as an antioxidant and protects tissues against radiation and pollution, slowing the aging process. It also aids protein synthesis. Cystine is abundant in many proteins of skeletal tissues and skin, and found in insulin and digestive enzymes chromotrypsinogen A, papain, and trypsinogen. (NCI04)|A covalently linked dimeric nonessential amino acid formed by the oxidation of CYSTEINE. Two molecules of cysteine are joined together by a disulfide bridge to form cystine.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:
Trader
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Main Products:
Cosmetic raw material,API,Retatrutide,Tirzepatide,Semaglutide,intermediates
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Location:
3-1-203 Green Home, No.1 Jianming South Road, Chang'an District, Shijiazhuang City, Hebei Province
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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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Total Employees:
5-10
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Year of Establishment:
2025
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Inquiry History4 Inquiries
Country Product Purchase Quantity Date Posted 
India
L-CYSTINE
1.00 KG Mar 31, 2026
India
L-CYSTINE
1.00 KG Aug 7, 2025 
Australia
L-Cystine
100.00 KG Jun 1, 2025
India
L-CYSTEINE
50.00 KG Mar 25, 2025 Post an enquiry for this product
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