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71742-40-0

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71742-40-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 71742-40-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,7,4 and 2 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 71742-40:
(7*7)+(6*1)+(5*7)+(4*4)+(3*2)+(2*4)+(1*0)=120
120 % 10 = 0
So 71742-40-0 is a valid CAS Registry Number.

71742-40-0Relevant articles and documents

Divergent amine-catalyzed [4+2] annulation of Morita-Baylis-Hillman allylic acetates with electron-deficient alkenes

Xu, Silong,Chen, Rongshun,Qin, Zifeng,Wu, Guiping,He, Zhengjie

supporting information; experimental part, p. 996 - 999 (2012/04/04)

An amine-catalyzed [4 + 2] annulation of Morita-Baylis-Hillman allylic acetates 2 with electron-deficient alkenes or diazenes has been developed for efficient syntheses of highly functionalized cyclohexenes, tetrahydropyridazines, and important spirocycle

PREPARATION AND DIELS-ALDER REACTIONS OF SOME FUNCTIONALIZED ISOPRENES

Mandai, Tadakatsu,Yokoyama, Haruyuki,Miki, Toshio,Fukuda, Haruo,Kobata, Hiroshi,et al.

, p. 1057 - 1060 (2007/10/02)

A convenient synthetic method for some functionalized isoprenes employing 1-bromo-2-phenylthioethane and ethyl acetoacetate as starting materials is reported.It has also been found that the dienes thus obtained gave functionalized limonene analogs by Diel

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