67147-67-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 67147-67-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,1,4 and 7 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 67147-67:
(7*6)+(6*7)+(5*1)+(4*4)+(3*7)+(2*6)+(1*7)=145
145 % 10 = 5
So 67147-67-5 is a valid CAS Registry Number.
67147-67-5Relevant articles and documents
SYNTHESIS OF ANALOGUES OF NATURAL PRECOCENE I CONTAINING VARIOUS 7-O-SUBSTITUENTS
Timar, Tibor,Hosztafi, Sandor,Jaszberenyi, J. Csaba,Koever, Katalin E.,Batta, Gyula
, p. 303 - 312 (2007/10/02)
Syntheses of analogues of the benzopyran precocene I (I) with various 7-O-substituents are described.The compounds were characterized by IR, MS, (1)H and (13)C-NMR.