15131-72-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 15131-72-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,5,1,3 and 1 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 15131-72:
(7*1)+(6*5)+(5*1)+(4*3)+(3*1)+(2*7)+(1*2)=73
73 % 10 = 3
So 15131-72-3 is a valid CAS Registry Number.
InChI:InChI=1/C13H9NO3/c15-9-10-3-5-12(6-4-10)17-13(16)11-2-1-7-14-8-11/h1-9H
15131-72-3Relevant articles and documents
Synthesis of cholesteryl esters of heterocyclic analogs of cinnamic acid and hetaroyloxycinnamic acids by the Wittig reaction
Listvan,Listvan,Shekel'
, p. 1480 - 1483 (2002)
The reaction of cholesteryl triphenylphosphonioacetate chloride with heterocyclic aldehydes and hetaroyloxyarenecarbaldehydes in the presence of base gave the corresponding cholesteryl esters of substituted propenoic acids possessing liquid crystal proper
