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56642-61-6

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56642-61-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 56642-61-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,6,6,4 and 2 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 56642-61:
(7*5)+(6*6)+(5*6)+(4*4)+(3*2)+(2*6)+(1*1)=136
136 % 10 = 6
So 56642-61-6 is a valid CAS Registry Number.

56642-61-6Upstream product

56642-61-6Relevant articles and documents

Synthesis and antibacterial activity of some new 2,3-dimethoxy-3-hydroxy-2-(1-phenyl-3-aryl-4-pyrazolyl)chromanones

Prakash, Om,Kumar, Rajesh,Sehrawat, Rakesh

scheme or table, p. 1763 - 1767 (2009/06/18)

Seven new 2,3-dimethoxy-3-hydroxy-2-(1-phenyl-3-aryl-4-pyrazolyl)chromanones (5) have been synthesized by the oxidation of 3-hydroxy-2-(1-phenyl-3-aryl-4-pyrazolyl)chromones (4) with iodobenzene diacetate in methanol. The structures of compounds 5 were es

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