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S-Benzyl-N-benzyloxycarbonyl-cysteine (Bn-Z-Cys) is a synthetic amino acid derivative that plays a significant role in peptide synthesis and protein chemistry. It is a protected form of cysteine, where the thiol group is substituted with a benzyl group (S-benzyl) and the amino group is protected by a benzyloxycarbonyl group (N-benzyloxycarbonyl). This protection is crucial for preventing unwanted side reactions, such as disulfide bond formation or oxidation, during peptide synthesis. The benzyl groups can be removed under specific conditions, typically using hydrogenolysis or other reducing agents, to reveal the free cysteine residue. Bn-Z-Cys is widely used in the synthesis of peptides and proteins with controlled reactivity and selectivity, allowing for the precise incorporation of cysteine residues into larger biomolecules.

5619-12-5

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5619-12-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 5619-12-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,6,1 and 9 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 5619-12:
(6*5)+(5*6)+(4*1)+(3*9)+(2*1)+(1*2)=95
95 % 10 = 5
So 5619-12-5 is a valid CAS Registry Number.

5619-12-5SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 16, 2017

Revision Date: Aug 16, 2017

1.Identification

1.1 GHS Product identifier

Product name N-benzyloxycarbonyl S-benzylcysteine

1.2 Other means of identification

Product number -
Other names S-Benzyl-N-benzyloxycarbonyl-L-cystein

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:5619-12-5 SDS

5619-12-5Relevant academic research and scientific papers

Process for S-Aryl cysteine

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Example 6, (2008/06/13)

The present invention provides methods for preparing S-aryl cysteines in enantiomeric excess of greater than about 96%. Specifically, the present invention provides enantioselective methods for preparing S-aryl cysteines starting from cystine, cysteine or

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