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109548-52-9

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109548-52-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 109548-52-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,5,4 and 8 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 109548-52:
(8*1)+(7*0)+(6*9)+(5*5)+(4*4)+(3*8)+(2*5)+(1*2)=139
139 % 10 = 9
So 109548-52-9 is a valid CAS Registry Number.

109548-52-9Relevant articles and documents

SYNTHESIS OF THIOCYANATE AND ISOTHIOCYANATE SUBSTITUTED CARBONATES AND CARBAMATES

Riondel, A.,Caubere, P.,Senet, J. P.,Lecolier, S.

, p. 1619 - 1630 (2007/10/02)

Reactions of alkyl 1-chloroethyl carbonates 1 and 1-chloroethyl N,N-dialkyl carbamates 2 with MSCN (M=K, NH4) in acetone or in protic solvents (MeOH, HCONH2) afforded the corresponding thio- and/or isothiocyano derivates in good yields.The origin of the N-bonded compounds is discussed and it is concluded that most of these compounds must be due to a N condensation of the thiocyanate anion.During this work, we also found a new very mild method for isomerizing in good yields alkyl 1-thiocyanoethyl carbonates and 1-thiocyanoethyl N,N-dialkyl carbamates to their corresponding isothiocyano derivates.

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