121653-63-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 121653-63-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,6,5 and 3 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 121653-63:
(8*1)+(7*2)+(6*1)+(5*6)+(4*5)+(3*3)+(2*6)+(1*3)=102
102 % 10 = 2
So 121653-63-2 is a valid CAS Registry Number.
121653-63-2Relevant articles and documents
Synthesis of Malonaldehyde Monoacetals
Shi-Qi, Peng,Winterfeldt, Ekkehard
, p. 1045 - 1047 (2007/10/02)
The synthesis of a series of malonaldehyde manoacetals is described.Selective hydrolysis or transacetalisation of 1,1,3,3-tetramethoxypropane and its analogues was proved to be a very general technique.