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1,1,2,2-Tetramethyl-6-(2,4,6-trimethylphenyl)-4-oxa-5-azaspiro<2.4>hept-5-ene is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

132540-51-3

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132540-51-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 132540-51-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,2,5,4 and 0 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 132540-51:
(8*1)+(7*3)+(6*2)+(5*5)+(4*4)+(3*0)+(2*5)+(1*1)=93
93 % 10 = 3
So 132540-51-3 is a valid CAS Registry Number.

132540-51-3Downstream Products

132540-51-3Relevant academic research and scientific papers

Retention of Configuration and E/Z Stereoselectivity in the Photolysis of cis- and trans-Tetraalkyl-4-methylene-1-pyrazolines

Quast, Helmut,Jakobi, Harald

, p. 1619 - 1626 (2007/10/02)

The isomeric 4-methylene-1-pyrazolines cis- and trans-2 are synthesized by a Wittig reaction from the pyrazolin-4-ones cis- and trans-1, respectively.Direct irradiation with 350-nm light of cis-2 affords the alkylidenecyclopropanes cis-8, (E)- and (Z)-9 (

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