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84763-03-1

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84763-03-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 84763-03-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,7,6 and 3 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 84763-03:
(7*8)+(6*4)+(5*7)+(4*6)+(3*3)+(2*0)+(1*3)=151
151 % 10 = 1
So 84763-03-1 is a valid CAS Registry Number.

84763-03-1Downstream Products

84763-03-1Relevant articles and documents

Synthesis of Substituted 2-Pyrrolidones

Neidlein, Richard,Shatzmiller, Shimon,Sinnreich, Dorina

, p. 8 - 12 (2007/10/02)

The preparation of the 2-pyrrolidone derivatives 6a,b via β-formyldicarboxylates 4a,b - starting from 1a,b and 2a,b - is described; reaction of 4a and 4b in ethanol in the presence of ammonium carbonate gave 5a and 6a,b, respectively. 6a was separated by chromatography into the isomers 7 and 8. 5a is also obtained by reaction of 4a in ethanol in the presence of p-toluenesulfonic acid; 5a in ethanol in the presence of ammonium carbonate at room temperature remained unchanged after 3 days.

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