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131202-41-0

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131202-41-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 131202-41-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,2,0 and 2 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 131202-41:
(8*1)+(7*3)+(6*1)+(5*2)+(4*0)+(3*2)+(2*4)+(1*1)=60
60 % 10 = 0
So 131202-41-0 is a valid CAS Registry Number.

131202-41-0Downstream Products

131202-41-0Relevant articles and documents

Synthesis and Structure of (E)-3-Phenylmethylene-2-oxetanone: Comments on the Stability of Methylene β-Lactones

Campi, Eva M.,Dyall, Kenneth,Fallon, Gary,Jackson, W. Roy,Perlmutter, Patrick,Smallridge, Andrew J.

, p. 855 - 856 (1990)

A route to stereospecifically (E)-substituted methylene-2-oxetanones is exemplified by the preparation of the phenyl derivative 4, whose structure has been confirmed by a single crystal X-ray structure determination.The relative stability of the parent compound, 3-methylene-2-oxetanone (5) has been compared with that of the well-known 4-methylene-2-oxetanone (6) (ketene dimer), by use of calculations involving Gaussian 82 programs.

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