113852-13-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 113852-13-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,3,8,5 and 2 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 113852-13:
(8*1)+(7*1)+(6*3)+(5*8)+(4*5)+(3*2)+(2*1)+(1*3)=104
104 % 10 = 4
So 113852-13-4 is a valid CAS Registry Number.
113852-13-4Relevant articles and documents
Aroylation and acylation of p-cyanomethylcalix[4]arenes
Sharma,Gutsche
, p. 813 - 822 (2007/10/02)
Calix[4]arenes carrying H, tert-butyl, and cyanomethyl groups in the p-positions are converted into tetraesters by aroylation or acylation in the presence of 1-methylimidazole or sodium hydride. Aroylation or acylation of p-cyanomethylcalix[4]arene in the