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138332-29-3

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138332-29-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138332-29-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,3,3 and 2 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 138332-29:
(8*1)+(7*3)+(6*8)+(5*3)+(4*3)+(3*2)+(2*2)+(1*9)=123
123 % 10 = 3
So 138332-29-3 is a valid CAS Registry Number.

138332-29-3Relevant academic research and scientific papers

Chemistry of insect antifeedants from Azadirachta indica (part 9): Oxidative reactions of azadirachtin derivatives leading to C8-C14 bond cleavage

Ley, Steven V.,Lovell, Peter J.,Smith, Stephen C.,Wood, Anthony

, p. 6183 - 6186 (1991)

A novel macrocyclic carbonate (4) was obtained by pyridinum chlorochromate oxidation of an azadirachtin derivative (3). This underwent efficient C8-C14 bond cleavage via a retro-Aldol reaction to give a highly functionalised decalin derivative (5) with po

Chemistry of Insect Antifeedants from Azadirachta indica, Part 14: Absolute Configuration of Azadirachtin

Ley, Steven V.,Lovell, Helen,Williams, David J.

, p. 1304 - 1306 (2007/10/02)

The absolute configuration of the insect antifeedant azadirachtin is determined by high field NMR application of the Mosher method and confirmed by X-ray crystallographic analysis.

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