23943-89-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 23943-89-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,9,4 and 3 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 23943-89:
(7*2)+(6*3)+(5*9)+(4*4)+(3*3)+(2*8)+(1*9)=127
127 % 10 = 7
So 23943-89-7 is a valid CAS Registry Number.
23943-89-7Relevant articles and documents
SYNTHESIS OF ALKALOIDS USING REISSERT COMPOUNDS, IV. A NEW SYNTHESIS OF (+/-)-MECAMBRIDINE
Kerekes, P.
, p. 303 - 308 (2007/10/02)
A new multistep synthesis of (+/-)-mecambridine (9) has been achieved starting from 2-benzoyl-1-1,2-dihydro-8-methoxy-6,7-methylenedioxyisoquinoline (1) (Reissert compound) and 3-benzyloxy-4-methoxybenzyl chloride (2).The last two steps of this synthesis
