656229-81-1 Usage
Chemical Properties
Colourless Solid
Check Digit Verification of cas no
The CAS Registry Mumber 656229-81-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,5,6,2,2 and 9 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 656229-81:
(8*6)+(7*5)+(6*6)+(5*2)+(4*2)+(3*9)+(2*8)+(1*1)=181
181 % 10 = 1
So 656229-81-1 is a valid CAS Registry Number.
656229-81-1Relevant articles and documents
Synthesis of Selectively Protected Genistein Derivatives
Szeja, Wieslaw,Pastuch, Gabriela,Wandzik, Ilona,Kuznik, Nikodem,Grynkiewicz, Grzegorz
, p. 4111 - 4121 (2007/10/03)
Differential functionalization of the phenolic groups in Genistein by sequential, silylation/acylation reactions, involving some unexpected regioselective O-silyl group replacement, is described.