115821-38-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 115821-38-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,5,8,2 and 1 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 115821-38:
(8*1)+(7*1)+(6*5)+(5*8)+(4*2)+(3*1)+(2*3)+(1*8)=110
110 % 10 = 0
So 115821-38-0 is a valid CAS Registry Number.
115821-38-0Relevant articles and documents
NOVEL RING EXPANSION OF CYCLOPENTANONES TO SEVEN MEMBERED RINGS
Tanaka, Masakazu,Suemune, Hiroshi,Sakai, Kiyoshi
, p. 1733 - 1736 (1988)
By treatment with BF3/ethyleneglycol, cyclopentanones with the carbonyl function at the C3-position of α-side chain undergo the ring cleavage to build up the seven membered rings, and this novel ring expansion was applied to the synthesis of bulnesol.
