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128094-21-3

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128094-21-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128094-21-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,0,9 and 4 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 128094-21:
(8*1)+(7*2)+(6*8)+(5*0)+(4*9)+(3*4)+(2*2)+(1*1)=123
123 % 10 = 3
So 128094-21-3 is a valid CAS Registry Number.

128094-21-3Downstream Products

128094-21-3Relevant articles and documents

Reaction of Cα,O-Dilithiooximes with Functionalized Carbonyl Compounds. Part 2. Reaction with α-Chloroketones and α,β-Unsaturated Aldehydes and Ketones

Jarrar, Adil A.,Hussein, Ahmad Q.,Madi, Ahmad S.

, p. 275 - 278 (2007/10/02)

The reaction of Cα,O-Dilithiooximes 2 and α-chloroketones afforded 5-(hydroxymethyl)-Δ2-isoxazolines 4. α,β-Unsaturated aldehydes and ketones reacted with 2 to give the corresponding acyclic 1,2-addition products 5.The latter were cyclized with phosphorus pentoxide to 5-vinyl-Δ2-isoxazolines 6.

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