76640-53-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 76640-53-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,6,6,4 and 0 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 76640-53:
(7*7)+(6*6)+(5*6)+(4*4)+(3*0)+(2*5)+(1*3)=144
144 % 10 = 4
So 76640-53-4 is a valid CAS Registry Number.
76640-53-4Relevant articles and documents
Juncunol : Revision of structure and synthesis
Cossey, Ailsa L.,Gunter, Maxwell J.,Mander, Lewis N.
, p. 3309 - 3312 (2007/10/02)
Synthetic studies have shown that juncunol is 2-hydroxy-1,7-dimethyl-5-vinyl-9,10-dihydrophenanthrene 18, and not the 1,6-dimethyl-7-vinyl isomer 2 as originally assumed.
