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97040-54-5

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97040-54-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 97040-54-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,0,4 and 0 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 97040-54:
(7*9)+(6*7)+(5*0)+(4*4)+(3*0)+(2*5)+(1*4)=135
135 % 10 = 5
So 97040-54-5 is a valid CAS Registry Number.

97040-54-5Downstream Products

97040-54-5Relevant articles and documents

ADDITION DE L'ACIDE THIOCYANIQUE AUX ACETYLENIQUES A L'AIDE DE Hg(II) II - OBTENTION D'ISOTHIOCYANATES VINYLIQUES PAR MERCURATION - PROTODEMERCURATION.

Giffard, Michel,Cousseau, Jack,Gouin, Lucien,Crahe, Marie-Renee

, p. 2243 - 2252 (2007/10/02)

Thiocyanic acid HSCN is added to some acetylenic compounds R1-CC-R2 through a two step one-pot procedure which involves, first, the generation in CH2Cl2 of β-thiocyanato and/or β-isothiocyanato alkenyl mercuric compounds R1-C(SCN)=CR2-Hg- by addition of mercury(II)thiocyanate Hg(SCN)2 to R1-CC-R2, then the substitution of mercury by hydrogen through acidic treatment.In proper conditions of stoechiometry and reaction time the process is thermodynamically controlled and thus allows to obtain vinyl isothiocyanates R1-C(-NCS)=CHR2 even when the isomeric vinyl thiocyanates are kinetically favoured.Preparation of 3,3-dimethyl 2-isothiocyanato 1-thiocyanato 1-butene is also reported.

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