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1634693-03-0

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1634693-03-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1634693-03-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,3,4,6,9 and 3 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1634693-03:
(9*1)+(8*6)+(7*3)+(6*4)+(5*6)+(4*9)+(3*3)+(2*0)+(1*3)=180
180 % 10 = 0
So 1634693-03-0 is a valid CAS Registry Number.

1634693-03-0Downstream Products

1634693-03-0Relevant articles and documents

Synthesis of novel trifluoromethyl-containing heterocycle-fused troponoid compounds

Gao, Wentao,Liu, Rui,Li, Yang

, p. 223 - 226 (2012)

A facile synthesis of novel trifluoromethylcontaining pyrano-, pyrazolo- and isoxazolo-fused tropone compounds 4a,b , 5a,b , and 6a,b , respectively, by cyclizations of ( E )-3-[3-(trifluoromethylphenyl)acryloyl] tropolones 3a,b is described. The substrates 3a,b were prepared by Claisen-Schmidt condensation reaction of 3-acetyltropolone ( 1 ) with 3- or 4-(trifluoromethyl)benzaldehydes 2a,b .

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