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874285-98-0

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874285-98-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 874285-98-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,4,2,8 and 5 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 874285-98:
(8*8)+(7*7)+(6*4)+(5*2)+(4*8)+(3*5)+(2*9)+(1*8)=220
220 % 10 = 0
So 874285-98-0 is a valid CAS Registry Number.

874285-98-0Relevant articles and documents

Auto-redox reaction: Tin(II) chloride-mediated one-step reductive cyclization leading to the synthesis of novel biheterocyclic 5,6-dihydro-quinazolino[4,3-b]quinazolin-8-ones with three-point diversity

Roy, Abhijeet Deb,Subramanian, Arunachalam,Roy, Raja

, p. 382 - 385 (2006)

A tin (II) chloride-mediated short, efficient, and practical regioselective synthesis of biheterocyclic 5,6-dihydro-quinazolino[4,3-b]quinazolin-8-ones with three-point diversity is reported. A one-step reductive transformation of 2-(2-nitro-phenyl)-3H-quinazolin-4-one in various alcohols furnished the desired tetracyclic product in good yields with high purity.

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