84258-87-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 84258-87-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,2,5 and 8 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 84258-87:
(7*8)+(6*4)+(5*2)+(4*5)+(3*8)+(2*8)+(1*7)=157
157 % 10 = 7
So 84258-87-7 is a valid CAS Registry Number.
84258-87-7Relevant academic research and scientific papers
The Synthesis of All of the Monomethyl Isomers of Benzonaphthothiophene
Tominaga, Yoshinori,Pratap, Ram,Castle, Raymond N.,Lee, Milton L.
, p. 871 - 877 (2007/10/02)
All isomers of the monomethylbenzonaphthothiophenes were synthesized by photocyclization of 2-styrylbenzothiophenes which were prepared by the Wadsworth-Emmons reaction or the Wittig reaction.
