113237-57-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 113237-57-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,3,2,3 and 7 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 113237-57:
(8*1)+(7*1)+(6*3)+(5*2)+(4*3)+(3*7)+(2*5)+(1*7)=93
93 % 10 = 3
So 113237-57-3 is a valid CAS Registry Number.
113237-57-3Relevant articles and documents
PHOSPHONATES α-LITHIES AGENTS DE TRANSFERT FONCTIONNEL. PREPARATION D'ALDEHYDES α,β-INSATURES α-SUBSTITUES.
Tay, M. K.,Aboujaoude, E. E.,Collignon, N.,Savignac, Ph.
, p. 1263 - 1266 (2007/10/02)
Condensation of α-lithioalkylphosphonates with ethoxymethyleneaniline leads to lithiated enaminoalkylphosphonates directly convertible on reaction with aldehydes into α,β-unsaturated α-substituted aldehydes.