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97640-49-8

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97640-49-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 97640-49-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,6,4 and 0 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 97640-49:
(7*9)+(6*7)+(5*6)+(4*4)+(3*0)+(2*4)+(1*9)=168
168 % 10 = 8
So 97640-49-8 is a valid CAS Registry Number.

97640-49-8Downstream Products

97640-49-8Relevant articles and documents

ADDITION DE L'ACIDE THIOCYANIQUE AUX ACETYLENIQUES A L'AIDE DE Hg(II)-I. ADDITION DU GROUPEMENT SCN(1-) EN PRESENCE D'UN ACIDE FORT

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

, p. 801 - 810 (2007/10/02)

Mercury(II) thiocyanate Hg(SCN)2 catalyses thiocyanic acid HSCN addition to unactivated acetylenic compounds R1-CC-R2.Bonding of the SCN moiety to carbon occurs through sulphur or nitrogen depending upon the influence of R1 and R2; vinyl thiocyanates NCS-C(R1)=CH2 are obtained specifically from terminal acetylenic compounds but some symmetrically disubstituted alkynes may afford vinyl isothiocyanates SCN-C(R1)=CH-R2 ( R1=R2=Et, n-Bu ).A simple preparation of tetraphenylphosphonium hydrogen dithiocyanate Ph4P(1+)*(1-) is reported.

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