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57405-00-2

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57405-00-2 Usage

Uses

Used in the preparation of carcinogenic Benzo[a]pyrene Diol Epoxide (B287550).

Check Digit Verification of cas no

The CAS Registry Mumber 57405-00-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,4,0 and 5 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 57405-00:
(7*5)+(6*7)+(5*4)+(4*0)+(3*5)+(2*0)+(1*0)=112
112 % 10 = 2
So 57405-00-2 is a valid CAS Registry Number.

57405-00-2Relevant articles and documents

Improved Formal Preparation of Enantiomerically Pure anti-Benzopyrene Diol Epoxide.

Negrete, George R.,Meehan, Thomas

, p. 4727 - 4730 (2007/10/02)

We report an improved, economical formal route to enantiomerically pure anti-benzopyrene diol epoxide (BPDE).A trimethylaluminum catalyzed regio- and stereoselective opening of racemic 7,8-epoxy-7,8,9,10-tetrahydrobenzopyrene with Mosher's acid delivers benzylic esters exclusively.This step is a significant improvement over the lack of regioselectivity of standard procedures.We also show that modification of the subsequent chemical steps further shortens the preparation of enantiomerically pure anti-BPDE.

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