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88057-20-9

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88057-20-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 88057-20-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,8,0,5 and 7 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 88057-20:
(7*8)+(6*8)+(5*0)+(4*5)+(3*7)+(2*2)+(1*0)=149
149 % 10 = 9
So 88057-20-9 is a valid CAS Registry Number.

88057-20-9Downstream Products

88057-20-9Relevant articles and documents

Antibacterial Benzisoxazolones. An Unusual Rearrangement Product from o-Nitrostyrene Oxide en Route to the Photolabile Carbonyl Protecting Group (o-Nitrophenyl)ethylene Glycol

Wierenga, Wendell,Harrison, Allen W.,Evans, Bruce R.,Chidester, Connie G.

, p. 438 - 442 (1984)

In the process of synthesizing the known, photolabile protecting group (o-nitrophenyl)ethylene glycol, we uncovered an acid-mediated rearrangement of o-nitrostyrene oxide to 1-(hydroxymethyl)-2,1-benzisoxazol-3(1H)-one.The structure was ascertained by IR, UV, 1H NMR, 13C NMR, MS, and X-ray crystallography.Also the benzisoxazolone was prepared by independent synthesis from an o-nitrobenzoate.Another novel transformation uncovered was the conversion of o-nitrostyrene oxide to 2-(o-nitrophenyl)ethanol with use of potassium hydroxide and 18-crown-6.Similiar chemistry was insignificant with p-nitrostyrene oxide.The benzisoxazolone exhibited antibacterial and antileukemic activity (in vitro).

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