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1248721-80-3

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1248721-80-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1248721-80-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,8,7,2 and 1 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1248721-80:
(9*1)+(8*2)+(7*4)+(6*8)+(5*7)+(4*2)+(3*1)+(2*8)+(1*0)=163
163 % 10 = 3
So 1248721-80-3 is a valid CAS Registry Number.

1248721-80-3Upstream product

1248721-80-3Relevant articles and documents

A simple and facile route for the synthesis of 2H-1,4-benzoxazin-3-(4H)- ones via reductive cyclization of 2-(2-nitrophenoxy)acetonitrile adducts in the presence of Fe/acetic acid

Ramesh, Chintakunta,Raju, B. Rama,Kavala, Veerababurao,Kuo, Chun-Wei,Yao, Ching-Fa

supporting information; experimental part, p. 1187 - 1192 (2011/03/22)

A simple route for the synthesis of 1,4-benzoxazin-3-(4H)-ones is described herein. This method involves the reductive cyclization of 2-(2-nitrophenoxy) acetonitrile adducts in the presence of Fe/acetic acid in good to excellent yields. This system was compatible with various other functional groups.

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