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30230

Sigma-Aldrich

L-Cystine bisallyl ester di(p-toluenesulfonate) salt

≥95.0% (sum of enantiomers, TLC)

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About This Item

Linear Formula:
CH2=CHCH2OCOCH(NH2)CH2SSCH2CH(NH2)COOCH2CH=CH2.2C7H8O3S
CAS Number:
Molecular Weight:
664.83
Beilstein:
7966375
MDL number:
UNSPSC Code:
12352200
PubChem Substance ID:

Assay

≥95.0% (sum of enantiomers, TLC)

optical activity

[α]20/D −11.5±1°, c = 3% in methanol

mp

175-180 °C

SMILES string

Cc1ccc(cc1)S(O)(=O)=O.Cc2ccc(cc2)S(O)(=O)=O.N[C@@H](CSSC[C@H](N)C(=O)OCC=C)C(=O)OCC=C

Other Notes

Used in peptide and N-glycopeptide synthesis; the ester is selectively deblocked with (Ph3P)3RhCl

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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H. Waldmann et al.
Liebigs Ann. Chem., 1712-1712 (1983)

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