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142633-89-4

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142633-89-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 142633-89-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,6,3 and 3 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 142633-89:
(8*1)+(7*4)+(6*2)+(5*6)+(4*3)+(3*3)+(2*8)+(1*9)=124
124 % 10 = 4
So 142633-89-4 is a valid CAS Registry Number.

142633-89-4Downstream Products

142633-89-4Relevant articles and documents

Addition of Lithium Anion of (Acetylmethylene)triphenylphosphorane to Nonracemic Sulfinimines: Total Synthesis of (+)-241D and Formal Total Synthesis of (+)-Preussin

Khandare, Sopan P.,Prasad, Kavirayani R.,Reddy, Polimera Obula

, p. 7273 - 7277 (2020)

The addition of lithium anion of (acetylmethylene)triphenylphosphorane to nonracemic sulfinimines was investigated. It was found that the addition proceeded with good diastereoselectivity and further reaction of the formed sulfinimidophosphorane with seve

S-(5'-deoxy-5'-adenosyl)-1-ammonio-4-(methylsulfonio)-2-cyclopentene: A potent, enzyme-activated irreversible inhibitor of S-adenosylmethionine decarboxylase

Wu,Woster

, p. 3196 - 3201 (2007/10/02)

The compound S-(5'-deoxy-5'-adenosyl)-1-ammonio-4-(methylsulfonio)-2- cyclopentene (AdoMac) was prepared and evaluated as an irreversible inhibitor of S-adenosylmethionine decarboxylase (AdoMet-DC). AdoMac was shown to inhibit AdoMet-DC in a time-dependent manner with a K(I) of 18.3 μM and a k(inact) of 0.133 min-1. In addition, AdoMet-DC activity could not be restored following extensive dialysis of the enzyme-inhibitor complex, and the enzyme was protected from irreversible inactivation by the known competitive inhibitor methylglyoxal bis(guanylhydrazone). HPLC analysis of the enzymatic reaction products revealed a time-dependent decrease in the peak coeluting with AdoMac, and a corresponding increase in the peak coeluting with (methylthio)adenosine (MTA), a byproduct of the irreversible binding of AdoMac to the enzyme. Thus, AdoMac appears to function as an enzyme-activated, irreversible inhibitor of AdoMet-DC.

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