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722508-56-7

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722508-56-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 722508-56-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,2,2,5,0 and 8 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 722508-56:
(8*7)+(7*2)+(6*2)+(5*5)+(4*0)+(3*8)+(2*5)+(1*6)=147
147 % 10 = 7
So 722508-56-7 is a valid CAS Registry Number.

722508-56-7Downstream Products

722508-56-7Relevant articles and documents

New approach to preparation of N-acylphosphoramido(thio)(seleno)ates

Baraniak, Janina,Kaczmarek, Renata,Wasilewska, Ewa,Korczyński, Dariusz,Stec, Wojciech J.

, p. 4269 - 4272 (2007/10/03)

N-[2-(X)-1,3,2-Oxathiaphospholane] derivatives (X=S, Se, O) of carboxamides were prepared and their DBU-assisted reaction with alcohols led to the corresponding O-alkyl-N-acylphosphoramido(thio)(seleno)ates. Their structures were confirmed by MS analysis and 1H and 31P NMR spectroscopy. Independently N-acylphosphoramidoselenoates were converted to N-acylphosphoramidates by treatment with tert-butylperoxytrimethylsilane. The oxathiaphospholane approach was also applied to the synthesis of derivatives having N-prolylphosphoramido(thio)(seleno)ate linkages on the 5′-OH group of AMP.

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