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728885-39-0

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728885-39-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 728885-39-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,2,8,8,8 and 5 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 728885-39:
(8*7)+(7*2)+(6*8)+(5*8)+(4*8)+(3*5)+(2*3)+(1*9)=220
220 % 10 = 0
So 728885-39-0 is a valid CAS Registry Number.

728885-39-0Downstream Products

728885-39-0Relevant articles and documents

Investigations in the field of benzoxa- zines. 15. Tandem heterocyclizations with the participion of 2-formylbenzoic acid. the synthesis of isoindolo[1,2-b][1, 3]- and -[2,1-a][1, 3]benzoxazinones

Gromachevskaya,Pilipenko,Butin,Zavodnik,Krapivin

experimental part, p. 106 - 116 (2010/08/19)

Single stage reactions of 2-formylbenzoic acids with substituted 2-(1-aminoalkyl)phenols and 2-amino-phenylcarbinols give a novel series of isomeric isoindolobenzoxazinones. X-ray analysis was used to study the molecular structure of 9-bromo-5,5-diphenyl-5H-isoindolo[2,1-a][1, 3]benzoxazin-11(6aH)- one and 2-bromo-8,10-dimethyl-10H-isoindolo[1,2-b][1, 3]-benzoxazin-12(4bH)-one.

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