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251306-14-6

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251306-14-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 251306-14-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,1,3,0 and 6 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 251306-14:
(8*2)+(7*5)+(6*1)+(5*3)+(4*0)+(3*6)+(2*1)+(1*4)=96
96 % 10 = 6
So 251306-14-6 is a valid CAS Registry Number.

251306-14-6Downstream Products

251306-14-6Relevant articles and documents

Synthesis of isoquino[1,2-a][2]benzazepines and biochemical testing of isomeric homoberbines and related papaverine-derivatives on the inhibition of phosphodiesterases

Meise,Onusseit,Clemens

, p. 658 - 666 (2007/10/03)

A synthesis of hitherto not accessable isoquino[1,2-a][2]benzazepines from benzoanellated seven-membered ring lactones or ε-hydroxyesters is reported; their conformation is presented. The tests of these and various similar compounds of inhibition of phosphodiesterases showed that the sterical position of one to the other benzene-ring is important. The homoberbines possess, because of their great deflexion, a weak, the norpapaverines a rather good inhibition activity: (e.g. 7, PDE III: IC50 = 1.7 μM; 8, PDE I: IC50 = 1.5 μM). For the 4,5-dihydro-3 H-2-benzazepines 13 (IC50 = 3 μM) and 14 (IC50 = 2 μM) a certain PDE IV-specifity is achieved.

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