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56202-04-1

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56202-04-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 56202-04-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,6,2,0 and 2 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 56202-04:
(7*5)+(6*6)+(5*2)+(4*0)+(3*2)+(2*0)+(1*4)=91
91 % 10 = 1
So 56202-04-1 is a valid CAS Registry Number.

56202-04-1Downstream Products

56202-04-1Relevant articles and documents

Candida rugosa lipase-mediated enantioselective acetylation studies on (±)-3-arylmethyl-3-hydroxymethyl-2,3-dihydro-1-benzopyran-4(H)-ones

Trikha, Smriti,Kumar, Rajesh,Dhawan, Ashish,Poonam,Prasad, Ashok K.,Cholli, Ashok L.,Olsen, Carl E.,Watterson, Arthur C.,Parmar, Virinder S.

, p. 356 - 365 (2007/10/03)

Candida rugosa lipase, catalyzed enantioselective acetylation reactions have been performed on novel (±)-3-arylmethyl-3-hydroxymethyl-2,3- dihydrobenzopyran-4-ones in diisopropyl ether. The Candida rugosa lipase-catalyzed acetylations exhibit the enantiomeric separation of the racemic compounds 5a-g, the enantioselectivity of the reaction has been found to be highly dependent on the structure of the substrate. The enantiomeric excess (ee) values are determined by 1H NMR spectral analysis of their O-acetylmandelic acid esters and highest enantiomeric excess obtained is 79% in case of 5c.

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