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1609282-78-1

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1609282-78-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1609282-78-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,0,9,2,8 and 2 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1609282-78:
(9*1)+(8*6)+(7*0)+(6*9)+(5*2)+(4*8)+(3*2)+(2*7)+(1*8)=181
181 % 10 = 1
So 1609282-78-1 is a valid CAS Registry Number.

1609282-78-1Relevant articles and documents

Preparation of 2'-13c-l-histidine starting from 13c-thiocyanate: Synthetic access to any site-directed stable isotope enriched l-histidine

Talab, Sarra,Taha, Kamal Khalifa,Lugtenburg, Johan

, p. 1023 - 1033 (2014/02/14)

1-Benzyl-2-(methylthio)-imidazole-5-ketone is obtained in a few simple steps starting from thiocyanate and glycine amide (glycin). Subsequent treatment with diethyl phosphorocyanidate and functional group manipulations gives 1-benzyl-5-chloromethylimidazolium chloride. This compound is converted under mild O'Donnell conditions into the corresponding L-histidine derivative. After deprotection L-histidine is obtained in good yield and 99% enantiomeric excess. 2'-13C-L-Histidine has been obtained via this new scheme with high (99%) 13C incorporation starting with commercially available 13C- thiocyanate. This synthetic scheme allows access to any isotopomer of L-histidine and many other biologically important imidazole derivatives.

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