133101-18-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 133101-18-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,1,0 and 1 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 133101-18:
(8*1)+(7*3)+(6*3)+(5*1)+(4*0)+(3*1)+(2*1)+(1*8)=65
65 % 10 = 5
So 133101-18-5 is a valid CAS Registry Number.
133101-18-5Relevant articles and documents
Preparation of Anthraquinones from 10-Hydroxy-9-anthracenecarbonitriles Obtained from a Novel Aryne Annulation Reaction
Bhawal, Baburao M.,Khanapure, Subhash P.,Zhang, Hongming,Biehl, Edward R.
, p. 2846 - 2849 (2007/10/02)
A new method for brief regioselective synthesis of anthraquinones via the reaction of anions of ethyl cyanoacetate or the anions of 2-(carbethoxyaryl)acetonitriles with arynes is described.
