61904-03-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 61904-03-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,1,9,0 and 4 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 61904-03:
(7*6)+(6*1)+(5*9)+(4*0)+(3*4)+(2*0)+(1*3)=108
108 % 10 = 8
So 61904-03-8 is a valid CAS Registry Number.
61904-03-8Relevant articles and documents
Process for preparing 4,4-dialkyl-6-halo-chromans or thiochromans useful as pharmaceutical intermediates
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, (2008/06/13)
A process of preparing intermediates useful in making compounds with retinoic acid-like activity is disclosed. The intermediates are halogenated chromans and thiochromans of the formula shown below and are prepared by the alkylation of a phenol or thiophe