116503-31-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 116503-31-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,6,5,0 and 3 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 116503-31:
(8*1)+(7*1)+(6*6)+(5*5)+(4*0)+(3*3)+(2*3)+(1*1)=92
92 % 10 = 2
So 116503-31-2 is a valid CAS Registry Number.
116503-31-2Relevant articles and documents
2-Acetyl-3-(phenylthio)-1,3-butadiene: A Novel Diels-Alder Diene and Dienophile
Chou, Shang-Shing P.,Tsai, Chung-Ying
, p. 5305 - 5308 (2007/10/02)
The title compound 3 was readily obtained by the thermolysis of 3-acetyl-4-(phenylthio)-3-sulfolene (2), which was prepared from 3-(phenylthio)-3-sulfolene (1) by Friedel-Crafts acylation.Compound 3, bearing an electron-donating phenylthio group and an el