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948913-18-6

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948913-18-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 948913-18-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,4,8,9,1 and 3 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 948913-18:
(8*9)+(7*4)+(6*8)+(5*9)+(4*1)+(3*3)+(2*1)+(1*8)=216
216 % 10 = 6
So 948913-18-6 is a valid CAS Registry Number.

948913-18-6Downstream Products

948913-18-6Relevant articles and documents

PROCESSES FOR SYNTHESIZING 7-ALKYNYL-4-AMINOQUINAZOLINES AND A RELATED INTERMEDIATE

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Page/Page column 13-14, (2008/06/13)

A process for synthesizing 7-alkynyl-4-aminoquinazolines from 7-haloquinazolines is disclosed. In one specific synthesis, 4-[N-3-chloro-4-fluorophenyl)]-7- [3-methyl-3-(4-methyl-l-piperazinyl)-l- butynyl]-6-[N-inethyl acrylamide] quinazoline is prepared from 7-chloro-6-nitro-3H-quinazolin-4-one. Also disclosed is an intermediate useful in the syntheses of 7-alkynyl-4-ammoquinaozolines and a process for making the intermediate. The 7-alkynyl-4-aminoquinaozolines prepared by processes of the invention are useful as pharmaceutically active compounds.

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