Cas 77654-76-3,4-(4-methoxyphenyl)-3H-1,2-dithiol-3-one

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Check Digit Verification of cas no

The CAS Registry Mumber 77654-76-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,6,5 and 4 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 77654-76:
(7*7)+(6*7)+(5*6)+(4*5)+(3*4)+(2*7)+(1*6)=173
173 % 10 = 3
So 77654-76-3 is a valid CAS Registry Number.

77654-76-3Upstream product

122763-01-3 2-(4-Methoxyphenyl)cyclopropenone

77654-76-3Downstream Products

77654-82-1 (diethylamino-5 phenyl-4 oxathiole-1,3 ylidene-2)-2 p-methoxyphenyl-2 thioacetaldehyde

77654-76-3Relevant articles and documents

Selective [3 + 2] Cycloaddition of Cyclopropenone Derivatives and Elemental Chalcogens

Wu, Jian,Gao, Wen-Xia,Huang, Xiao-Bo,Zhou, Yun-Bing,Liu, Miao-Chang,Wu, Hua-Yue

, p. 5555 - 5560 (2020)

A highly efficient method is disclosed for the synthesis of 1,2-dichalcogen heterocycles via [3 + 2] cycloaddition of cyclopropenone derivatives and elemental chalcogens. Different from other cyclopropenone derivatives, cyclopropenselenones undergo unprec

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77654-76-3