Cas 77633-43-3,Chloromethylsulfanylethynyl-benzene

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Check Digit Verification of cas no

The CAS Registry Mumber 77633-43-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,6,3 and 3 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 77633-43:
(7*7)+(6*7)+(5*6)+(4*3)+(3*3)+(2*4)+(1*3)=153
153 % 10 = 3
So 77633-43-3 is a valid CAS Registry Number.

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15112-40-0 4-phenyl-1,3-dithiole

77633-43-3Relevant academic research and scientific papers

A convenient synthesis of 1,3-dithioles, 1,3-thiaselenoles and 1,3-thiatelluroles

Sukhai, R. S.,Verboom, W.,Meijer, J.,Schoufs, M. J. M.,Brandsma, L.

, p. 10 - 13 (2007/10/02)

Reaction of 1-(chloromethylthio)-1-alkynes (RCC-S-CH2Cl, R = alkyl or phenyl) with an alkali metal sulfide, selenide or telluride gives 4-substituted 1,3-dithioles together with the corresponding 1,3-thiaselenoles and 1,3-thiatelluroles in good yields.The

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