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34649-00-8

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34649-00-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 34649-00-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,4,6,4 and 9 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 34649-00:
(7*3)+(6*4)+(5*6)+(4*4)+(3*9)+(2*0)+(1*0)=118
118 % 10 = 8
So 34649-00-8 is a valid CAS Registry Number.

34649-00-8Relevant articles and documents

Phenyl [...] compound and its preparation method, pharmaceutical composition, drug use (by machine translation)

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Paragraph 0589; 0591; 0594; 0595, (2016/10/27)

The invention provides a phenylurea coupling quinazoline compound or a pharmaceutically acceptable salt thereof represented by formula (I), wherein R1 represents H, represents Br, Cl or F, represents -CH3, -CH2-CH3, -CH2(CH3)2 or -CF3, represents -O-CH3, -O-CH2-CH3 or -O-CH2(CH3)2, or represents -C[triple bond]CH or -C[triple bond]N; n1 is 1, 2, 3, 4 or 5; one of R2 and R3 is a group represented by formula (II); R4 represents H, represents Br, Cl or F, represents -CH3, -CH2-CH3, -CH2(CH3)2 or -CF3, represents -O-CH3, -O-CH2-CH3 or -O-CH2(CH3)2, represents -NH2, or represents -NO2; n2 is 1, 2, 3, 4 or 5; and the other one of R2 and R3 represents H, -O-CH3, -O-CH2-CH3, -O-CH2(CH3)2, or the following groups.

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