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3-Hydroxy-5,6-benzocumarin is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

33265-21-3

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33265-21-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 33265-21-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,2,6 and 5 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 33265-21:
(7*3)+(6*3)+(5*2)+(4*6)+(3*5)+(2*2)+(1*1)=93
93 % 10 = 3
So 33265-21-3 is a valid CAS Registry Number.

33265-21-3Downstream Products

33265-21-3Relevant academic research and scientific papers

Transformations of Isomeric Naphthopyranones. The Synthesis of Substituted β-Naphthyl-α,β-dehydro-α-amino Acid Derivatives

Ornik, Brina,Stanovnik, Branko,Tisler, Miha

, p. 1241 - 1244 (2007/10/02)

THe opening of the pyranone ring in 2H-naphthopyran-2-one derivative (1) and 3H-naphthopyran-3-one derivatives 8 and 20 with nucleophiles afforded 3-(naphthyl-1)- and 3-(naphthyl-2)propenoates (substituted β-naphthyl-α,β-dehydro-α-amino acid

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