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128358-33-8

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128358-33-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128358-33-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,3,5 and 8 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 128358-33:
(8*1)+(7*2)+(6*8)+(5*3)+(4*5)+(3*8)+(2*3)+(1*3)=138
138 % 10 = 8
So 128358-33-8 is a valid CAS Registry Number.

128358-33-8Downstream Products

128358-33-8Relevant articles and documents

On the Scope of Asymmetric Nitrile Oxide Cycloadditions with Oppolzer's Chiral Sultam. Total Syntheses of (+)-Hepialone, (-)-(1R,3R,5S)-1,3-Dimethyl-2,9-dioxabicyclooctane

Curran, Dennis P.,Heffner, Timothy A.

, p. 4585 - 4595 (2007/10/02)

Cycloadditions of nitrile oxides with acryloyl derivatives of Oppolzer's chiral sultam produce stereoisomeric Δ2-isoxazolines in ratios of about 90/10 at 25 deg C.The major diastereomers can be isolated in pure form in 70-88percent yield.Synthe

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