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1253-23-2

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1253-23-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1253-23-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,2,5 and 3 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1253-23:
(6*1)+(5*2)+(4*5)+(3*3)+(2*2)+(1*3)=52
52 % 10 = 2
So 1253-23-2 is a valid CAS Registry Number.

1253-23-2Downstream Products

1253-23-2Relevant articles and documents

Cardiac Glycosides. 6. Gitoxigenin C16 Acetates, Formates, Methoxycarbonates, and Digitoxosides. Synthesis and Na+, K+ -ATPase Inhibitory Activities

Hashimoto, Toshihiro,Rathore, Hargovind,Satoh, Daisuke,Hong, George,Griffin, Jane F.,et al.

, p. 997 - 1003 (2007/10/02)

A series of 17 gitoxigenin 16β-formates, acetates, and methoxycarbonates was synthesized, including their 3β-acetates, formates, and digitoxosides.A 16β-formate group was generally found to increase activity 30 times, a 16β-acetate group 9-12 times, while a 16β-methoxycarbonate decreased activity by two-thirds. 3β-Formates and acetates had little effect on activity by themselves, but sometimes reduced the activity-increasing properties of 16β-formates and acetates.A 3β-digitoxoside increases the activity of ditoxigenin by 15 times, but the effect is less ifthe 16β-group is esterified.And finally, a 16-one decreases activity dramatically.These data suggest an important role for C16 esters and possibly the presence of a separate binding site on Na+, K+ -ATPase corresponding to the cardenolide C16 position.

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