120623-21-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 120623-21-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,0,6,2 and 3 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 120623-21:
(8*1)+(7*2)+(6*0)+(5*6)+(4*2)+(3*3)+(2*2)+(1*1)=74
74 % 10 = 4
So 120623-21-4 is a valid CAS Registry Number.
120623-21-4Relevant articles and documents
SYNTHESIS OF ANALOGUES OF NATURAL PRECOCENES CONTAINING A 5-METHYL SUBSTITUENT
Timar, Tibor,Jaszberenyi, J. Csaba,Hosztafi, Sandor
, p. 457 - 464 (2007/10/02)
The synthesis of benzopyran compounds (VII a-q), analogues of precocene I (I) substituted on C-5 in the aromatic ring with a methyl group, is described.