(H-Cys-OMe)2.2HCl

Basic Information

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CAS Number

32854-09-4

Molecular Formula

C8H18Cl2N2O4S2

Molecular Weight

341.28 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Basic Chemical Raw Materials Organic Chemicals Esters

Basic Chemical Raw Materials Organic Chemicals Ethers

Basic Chemical Raw Materials Organic Chemicals Amines

Basic Physical Properties

Melting Point

182-183 °C (dec.)

Boiling Point

375.5°C at 760 mmHg

Specific Rotation

-35 º (c=4, MeOH)

SMILES

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COC(=O)C(CSSCC(C(=O)OC)N)N.Cl.Cl

InChI

InChI=1S/C8H16N2O4S2.2ClH/c1-13-7(11)5(9)3-15-16-4-6(10)8(12)14-2;;/h5-6H,3-4,9-10H2,1-2H3;2*1H/t5-,6-;;/m1../s1

InChIKey

QKWGUPFPCRKKMQ-BNTLRKBRSA-N

LogP

0.2119999999999993

Topological Polar Surface Area

104.64000000000001 Å²

Hydrogen Bond Donor/Acceptor

4 / 6

Complexity

216

Safety Information

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GHS Hazard Pictograms

H315

H319

H335

Hazard Statement

H315 Causes skin irritation
Skin corrosion/irritation

H319 Causes serious eye irritation
Serious eye damage/eye irritation

H335 May cause respiratory irritation
Specific target organ toxicity, single exposure; Respiratory tract irritation

Synonyms & References

English

Dimethyl L-cystinate dihydrochloride
Dimethyl 3,3'-disulfanediyl(2R,2'R)-bis(2-aminopropanoate) dihydrochloride
C3303
MFCD00012490
(2R,2'R)-Dimethyl 3,3'-disulfanediylbis(2-aminopropanoate) dihydrochloride
M06022
(H-Cys-OMe)2.2HCl (Disulfide bond)
D-Cystine bis(methyl ester) dihydrochloride
SCHEMBL1565156
Cystine dimethyl ester dihydrochloride
J-018907
NS00087649
CS-W009833
L-CYSTINE, 1,1'-DIMETHYL ESTER, HYDROCHLORIDE (1:2)
L-Cystine dimethyl ester dihydrochloride, >=95%
UNII-9E45OJ92M0
DS-2260
NSC-161614
NSC 161614
L-Cystine-dimethyl Ester Dihydrochloride
methyl (2R)-2-amino-3-{[(2R)-2-amino-3-methoxy-3-oxopropyl]disulfanyl}propanoate dihydrochloride
Dimethyl L-cystinate HCl
(H-Cys-OMe)2.2HCl
EINECS 251-261-4
L-Cystine dimethyl ester dihydrochloride
dimethyl cystinate dihydrochloride
methyl (2R)-2-amino-3-[[(2R)-2-amino-3-methoxy-3-oxopropyl]disulfanyl]propanoate;dihydrochloride
PD196658
32854-09-4
9E45OJ92M0
HY-W009117

MDL Number

MFCD00012490

FAQ

What are the physical and chemical properties of (H-Cys-OMe)2.2HCl (CAS: 32854-09-4)?

(H-Cys-OMe)2.2HCl is a crystalline compound with a molecular weight of approximately 567.42 g/mol. It is slightly soluble in water and has a pKa of 6.5. The compound is reactive towards strong bases and reducing agents. It is stable under normal storage conditions but should be protected from moisture and heat.

How is (H-Cys-OMe)2.2HCl (CAS: 32854-09-4) typically synthesized?

(H-Cys-OMe)2.2HCl is typically synthesized by the reaction of cysteine methyl ester hydrochloride (CME) with hydrogen cyanide in the presence of a catalyst such as potassium carbonate. The reaction is exothermic and requires careful temperature control to achieve high yield and selectivity.

What industries use (H-Cys-OMe)2.2HCl (CAS: 32854-09-4)?

(H-Cys-OMe)2.2HCl is primarily used in the pharmaceutical industry for the synthesis of certain peptides and in the chemical industry for the production of additives and reagents. It is also used in the polymer industry as a monomer precursor and in the semiconductor industry for surface modification.

What precautions should be taken when handling (H-Cys-OMe)2.2HCl (CAS: 32854-09-4)?

When handling (H-Cys-OMe)2.2HCl, ensure proper ventilation and use in a fume hood. Wear appropriate personal protective equipment (PPE) including gloves, goggles, and a lab coat. Store the compound in a cool, dry place away from moisture. In case of spill, neutralize with a basic solution and dispose of according to local hazardous waste regulations. Always refer to the Safety Data Sheet (SDS) for specific handling instructions.