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957770-67-1

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957770-67-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 957770-67-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,5,7,7,7 and 0 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 957770-67:
(8*9)+(7*5)+(6*7)+(5*7)+(4*7)+(3*0)+(2*6)+(1*7)=231
231 % 10 = 1
So 957770-67-1 is a valid CAS Registry Number.

957770-67-1Downstream Products

957770-67-1Relevant articles and documents

Total synthesis of (-)-nakadomarin A

Kyle, Andrew F.,Jakubec, Pavol,Cockfield, Dane M.,Cleator, Ed,Skidmore, John,Dixon, Darren J.

, p. 10037 - 10039 (2011)

A highly diastereoselective bifunctional organocatalyst controlled Michael addition, a nitro-Mannich/lactamization cascade, a furan N-acyliminium cyclisation, a sequential alkyne RCM/syn-reduction and an alkene RCM has allowed a 19 step, highly stereosele

Asymmetric indoline synthesis via intramolecular aza-Michael addition mediated by bifunctional organocatalysts

Miyaji, Ryota,Asano, Keisuke,Matsubara, Seijiro

, p. 3658 - 3661 (2013/08/23)

A novel method for the asymmetric synthesis of 2-substituted indolines, employing bifunctional amino(thio)urea catalysts, was developed. The reaction proceeded via an intramolecular aza-Michael addition mediated by activation through hydrogen bonding. The

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