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74494-54-5

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74494-54-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 74494-54-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,4,9 and 4 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 74494-54:
(7*7)+(6*4)+(5*4)+(4*9)+(3*4)+(2*5)+(1*4)=155
155 % 10 = 5
So 74494-54-5 is a valid CAS Registry Number.

74494-54-5Relevant articles and documents

Interconversion and Hydrolysis of Monomethyl and Monoisopropyl Esters of Adenosine 2'- and 3'-Monophosphates: Kinetics and Mechanisms

Oivanen, Mikko,Schnell, Ralf,Pfleiderer, Wolfgang,Loennberg, Harri

, p. 3623 - 3628 (2007/10/02)

First-order rate constants for mutual isomerization and hydrolytic cleavage of the monomethyl and monoisopropyl esters of adenosine 2'- and 3'-monophosphates (2'- and 3'-AMP) have been determined by HPLC over a wide pH range.Both reactions preceed at comparable rates under acidic conditions, exhibiting a second-order dependence of rate on hydronium ion concentration at 1 -> -3.No sign of mutual isomerization was detected under these conditions.With the isopropyl esters alkaline degradation of the adenine moiety is considerably faster than the phosphodiester hydrolysis.Mechanisms of phosphate migration and phosphodiester hydrolysis under various conditions have been discussed.

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