196618-44-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 196618-44-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,6,6,1 and 8 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 196618-44:
(8*1)+(7*9)+(6*6)+(5*6)+(4*1)+(3*8)+(2*4)+(1*4)=177
177 % 10 = 7
So 196618-44-7 is a valid CAS Registry Number.
196618-44-7Relevant articles and documents
Synthesis of annulated 4-alkylidenebutenolides from natural occurring diosphenols
Schneider, David F.,Viljoen, Murray S.
, p. 3349 - 3360 (2007/10/03)
Diosphenol (3) and Ψ-diosphenol (4), two constituents of the essential oil from the buchu plant, Borosma betulina (Bartl.), were utilized for the synthesis of the anulated 4-ylidenebutenolides (5) and (6).
