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93900-17-5

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93900-17-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 93900-17-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,3,9,0 and 0 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 93900-17:
(7*9)+(6*3)+(5*9)+(4*0)+(3*0)+(2*1)+(1*7)=135
135 % 10 = 5
So 93900-17-5 is a valid CAS Registry Number.

93900-17-5Relevant articles and documents

A Simple Synthetic Method of trans-5-Aryl and 5-Cyclopropyl Derivatives of 2-Isoxazolin-4-ol via Intramolecular Ring Opening of α,β-Epoxy Ketone Oximes

Ito, Shoei,Sato, Masahiro

, p. 2739 - 2741 (1990)

trans-5-Aryl and 5-cyclopropyl derivatives of 2-isoxazolin-4-ol were conveniently prepared from trans-2-aryl- and 2-cyclopropyl-3-benzoyloxiranes and hydroxylamine hydrochloride in the presence of pyridine via an intramolecular opening of oxirane by the oxygen nucleophile of the oximino group.

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