140925-40-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 140925-40-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,0,9,2 and 5 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 140925-40:
(8*1)+(7*4)+(6*0)+(5*9)+(4*2)+(3*5)+(2*4)+(1*0)=112
112 % 10 = 2
So 140925-40-2 is a valid CAS Registry Number.
140925-40-2Relevant articles and documents
Studies in Polypropionate Synthesis: A General Approach to the Synthesis of Stereopentads.
Paterson, Ian,Channon, Julia A.
, p. 797 - 800 (2007/10/02)
A general protocol for the synthesis of specific isomers of the stereopentad 1 from the α-chiral ethyl ketones (R)- and (S)-2 has been developed.From (S)-2, this involves stepwise elaboration of each of the three aldol adducts 3, 4 and 5 by stereoselectiv
