13621-31-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 13621-31-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,6,2 and 1 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 13621-31:
(7*1)+(6*3)+(5*6)+(4*2)+(3*1)+(2*3)+(1*1)=73
73 % 10 = 3
So 13621-31-3 is a valid CAS Registry Number.
13621-31-3Relevant academic research and scientific papers
Synthesis of 1,1,5,6-Tetramethyltetralin, a Nonsesquiterpenic Constituent of Isocoma wrightii
Murali, D.,Rao, G. S. Krishna
, p. 1033 - 1034 (2007/10/02)
The synthesis of 1,1,5,6-tetramethyltetralin (1) has been achieved starting from 4-t-butyl-o-xylene (3) via the keto ester (6).De-t-butylation of 6 to 8, followed by Clemmensen reduction, Grignard reaction and cyclodehydration gives 1.
