156723-12-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 156723-12-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,7,2 and 3 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 156723-12:
(8*1)+(7*5)+(6*6)+(5*7)+(4*2)+(3*3)+(2*1)+(1*2)=135
135 % 10 = 5
So 156723-12-5 is a valid CAS Registry Number.
156723-12-5Relevant articles and documents
A formal total synthesis of salvadione
Maier, Martin E.,Bayer, Alexander
, p. 4034 - 4043 (2006)
The tricyclic 6-7-6 core structure of the triterpene salvadione (1) was obtained in an efficient manner from the aryl bromide 16 and the alkyl iodide 35 carrying a methylenecyclohexane group at the terminus. Alkylation of the anion derived from 16 with th