125417-57-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 125417-57-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,5,4,1 and 7 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 125417-57:
(8*1)+(7*2)+(6*5)+(5*4)+(4*1)+(3*7)+(2*5)+(1*7)=114
114 % 10 = 4
So 125417-57-4 is a valid CAS Registry Number.
125417-57-4Relevant articles and documents
Short Synthesis of (+/-)-4,8-Dimethyl-1-oxaspirodeca-3,7-dien-2-one (Andirolactone) Using the Propynoate/Cuprate Method
Krause, Norbert
, p. 603 - 604 (2007/10/02)
Racemic 4,8-dimethyl-1-oxaspirodeca-3,7-dien-2-one (andirolactone) (1) was synthesized in two steps with 58percent overall yield, starting from 4-methyl-3-cyclohexenone (2) and methyl propynoate (3).
