1190200-23-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1190200-23-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,9,0,2,0 and 0 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1190200-23:
(9*1)+(8*1)+(7*9)+(6*0)+(5*2)+(4*0)+(3*0)+(2*2)+(1*3)=97
97 % 10 = 7
So 1190200-23-7 is a valid CAS Registry Number.
1190200-23-7Relevant articles and documents
PROCESS FOR PREPARATION OF NARATRIPTAN HYDROCHLORIDE
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Page/Page column 31, (2009/10/22)
The present invention relates to an improved process for the preparation of N-methyl-3- (1-methyl-4-piperidinyl)-1H-indole-5-ethanesulfonamide hydrochloride of formula (I) having less than 0.15 % area by HPLC of 3-(1-methyl-4-piperidinyl)-1H-indole-5- ethanesulfonamide (1A) and intermediates thereof.