69080-03-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 69080-03-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,0,8 and 0 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 69080-03:
(7*6)+(6*9)+(5*0)+(4*8)+(3*0)+(2*0)+(1*3)=131
131 % 10 = 1
So 69080-03-1 is a valid CAS Registry Number.
69080-03-1Relevant articles and documents
Metacyclophanes and Related Compounds. 14. Preparation of 8,16-Difluorometacyclophane
Tashiro, Masashi,Yamato, Takehiko
, p. 2939 - 2942 (2007/10/02)
Although preparation of 8,16-difluoro-, 8,16-dichloro-, and 8,16-dibromometacyclophanes was attempted, only 8,16-difluorometacyclophane was obtained from fluorobenzene in seven steps by using a tert-butyl group as a positional protective function.