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1649463-23-9

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1649463-23-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1649463-23-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,4,9,4,6 and 3 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1649463-23:
(9*1)+(8*6)+(7*4)+(6*9)+(5*4)+(4*6)+(3*3)+(2*2)+(1*3)=199
199 % 10 = 9
So 1649463-23-9 is a valid CAS Registry Number.

1649463-23-9Downstream Products

1649463-23-9Relevant articles and documents

New synthesis and reactions of ethyl 5-amino-4-cyano-1-phenyl-1H-pyrazole- 3-carboxylate

Gangurde, Sachin A.,Kanawade, Shrikant B.,Nikam, Prashant S.,Bhavsar, Dinesh C.,Toche, Raghunath B.

, p. 883 - 890 (2014/08/05)

Synthesis of ethyl 5-amino-4-cyano-1-phenyl-1H-pyrazole-3-carboxylate 5 has been achieved via abnormal Beckmann rearrangement of o-chloroaldehyde 1. Reaction of o-aminocarbonitrile 5 with concentrated H2SO4 furnished expected o-amino

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