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Merck
CN

PMB3005

L-Cystine dihydrochloride

≥98.0%, ISOM8, suitable for cell culture

Synonym(s):

L-Cystine dihydrochloride, Cystine dihydrochloride

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About This Item

Empirical Formula (Hill Notation):
C6H12N2O4S2 · 2HCl
CAS Number:
Molecular Weight:
313.22
UNSPSC Code:
12352200
MDL number:
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product line

ISOM8

Quality Segment

assay

≥98.0%

form

powder (or crystals)

technique(s)

cell culture | mammalian: suitable

impurities

endotoxin, tested

color

off-white, white

mp

≥211.36 °C

functional group

carboxylic acid, thiol

storage temp.

room temp

SMILES string

Cl.Cl.N[C@@H](CSSC[C@H](N)C(O)=O)C(O)=O

InChI

1S/C6H12N2O4S2.2ClH/c7-3(5(9)10)1-13-14-2-4(8)6(11)12;;/h3-4H,1-2,7-8H2,(H,9,10)(H,11,12);2*1H/t3-,4-;;/m0../s1

InChI key

HHGZUQPEIHGQST-RGVONZFCSA-N

General description

L-Cystine dihydrochloride is a stable, water-soluble form of the naturally occurring amino acid cystine. As an oxidized dimer of cysteine, it provides a reliable source of sulfur-containing amino acids in biochemical applications.L-Cystine dihydrochloride is utilized as a raw material in buffer formulations, culture media, and reagent systems where it supports protein stability, redox balance, and assay consistency. Its well-defined composition and high solubility make it suitable for controlled environments requiring reproducible results.With its versatility and compatibility in biological systems, L-Cystine dihydrochloride serves as a dependable raw material in the development and production of assays and other life science products.

Features and Benefits

Features:

1. Qualified Raw Materials: Products that meet the stringent requirements of the Elevated Assurance Program, ensuring compliance with regulatory standards.
2. Comprehensive Documentation: Includes essential documents such as certificates, impurity profiles, and declarations to support audits and risk assessments.
3. M-Clarity Quality Attributes: Products are classified within the MQ300 quality segment or higher, demonstrating superior quality assurance. https://www.sigmaaldrich.com/life-science/quality-and-regulatory-management/m-clarity-program
4. Confirmed Process Controls: Established processes that ensure consistency and reliability in manufacturing.
5. Enhanced Change Notification: Timely updates on any changes to product specifications or processes, ensuring transparency and compliance.
6. Freely Available Dossiers: Access to robust, ready-to-present product dossiers that include:
  • Site quality assessment
  • ISO 9001 certificate
  • Detailed product specifications
  • Relevant declarations/statements (e.g., animal origin content, BSE/TSE, nitrosamine)


Benefits:


1. Regulatory Compliance: Helps you meet compliance standards effectively, reducing the risk of regulatory issues.
2. Audit Readiness: Instills confidence during audits with comprehensive documentation and confirmed process controls, demonstrating your commitment to high-quality products.
3. Operational Transparency: Supports supply chain transparency, allowing you to track and verify the quality of raw materials.
4. Enhanced Support: Provides exceptional quality-related information and tailored assistance to meet your specific needs.
5. Risk Mitigation: Facilitates thorough risk assessments with detailed documentation, helping you manage potential compliance challenges.
6. Informed Decision-Making: Access to clear and comprehensive product information enables better decision-making and enhances operational efficiency.

Legal Information

ISOM8 is a trademark of Sigma-Aldrich Co. LLC
M-CLARITY is a trademark of Merck KGaA, Darmstadt, Germany


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pictograms

Corrosion

signalword

Danger

hcodes

Hazard Classifications

Eye Dam. 1 - Skin Corr. 1B

Storage Class

8A - Combustible corrosive hazardous materials

flash_point_f

Not applicable

flash_point_c

Not applicable



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