54857-47-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 54857-47-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,8,5 and 7 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 54857-47:
(7*5)+(6*4)+(5*8)+(4*5)+(3*7)+(2*4)+(1*7)=155
155 % 10 = 5
So 54857-47-5 is a valid CAS Registry Number.
54857-47-5Relevant articles and documents
SYNTHESIS AND DIRECT PHOTOLYSIS OF CIS-1,2-DI-TERT.-BUTYL-CYCLOHEPTENE
Jendralla, Heiner
, p. 3657 - 3660 (1982)
1,2-Di-tert.-butyl-cycloheptene 6 was obtained from pimelic acid 1 in a three step sequence via intramolecular reductive coupling of the diketone 5.Direct photolysis of 6 gave endo-1,7-di-tert.-butyl-norcarane 7.
