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3,5-Dimethyl-4-methylene-5-phenyl-dihydro-furan-2-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

128813-18-3

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128813-18-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128813-18-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,8,1 and 3 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 128813-18:
(8*1)+(7*2)+(6*8)+(5*8)+(4*1)+(3*3)+(2*1)+(1*8)=133
133 % 10 = 3
So 128813-18-3 is a valid CAS Registry Number.

128813-18-3Upstream product

128813-18-3Relevant articles and documents

Radical cyclisations of propargyl bromoamides and propargyl bromoesters. New routes to tetramic acids, pyrrolinones, tetronic acids and butenolides

Clough,Pattenden,Wight

, p. 7469 - 7472 (1989)

Radical cyclisations of the propargyl bromoamides (5) and (9), and the propargyl bromoesters (17) and (21a-e), produce precursors viz (6), (10), (18) and (22), to the tetramic acids (8) and (12), the pyrrolinones (7) and (11), the tetronic acids (20) and

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