89817-40-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89817-40-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,8,1 and 7 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 89817-40:
(7*8)+(6*9)+(5*8)+(4*1)+(3*7)+(2*4)+(1*0)=183
183 % 10 = 3
So 89817-40-3 is a valid CAS Registry Number.
89817-40-3Relevant academic research and scientific papers
The synthesis of the Monomethylbenzophenanthrothiophenes
Sagiura, Michiharu,Tedjamulia, Marvin L.,Tominaga, Yoshinori,Castle, Raymond M.,Lee, Milton L.
, p. 1453 - 1459 (2007/10/02)
The synthesis of the potentially mutagenic 1-methyl- (11), 3-methyl- (12), 4-methyl- (21), 5-methyl- (27), 7-methyl- (58), 8-methyl- (61), 9-methyl- (59) and 10-methylbenzophenanthrothiophene (60) is reported.
