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1173202-57-7

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1173202-57-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1173202-57-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,7,3,2,0 and 2 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1173202-57:
(9*1)+(8*1)+(7*7)+(6*3)+(5*2)+(4*0)+(3*2)+(2*5)+(1*7)=117
117 % 10 = 7
So 1173202-57-7 is a valid CAS Registry Number.

1173202-57-7Upstream product

1173202-57-7Downstream Products

1173202-57-7Relevant articles and documents

Facile synthesis of β-amino disulfides, cystines, and their direct incorporation into peptides

Nasir Baig,Kanimozhi, Catherine K.,Sudhir, V. Sai,Chandrasekaran, Srinivasan

scheme or table, p. 1227 - 1232 (2009/09/06)

Herein, we report a simple and efficient methodology for the synthesis of β-amino disulfides by regioselective ring opening of sulfamidates with benzyltriethylammonium tetrathiomolybdate [BnNEt3] 2MoS4. Stability and reactivity of different protecting groups under the reaction conditions have been discussed. This methodology has also been extended to serine and threonine derived sulfamidates to furnish cystine and 3,3′-dimethyl cystine derivatives. Georg Thieme Verlag.

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