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224786-13-4

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224786-13-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 224786-13-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,4,7,8 and 6 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 224786-13:
(8*2)+(7*2)+(6*4)+(5*7)+(4*8)+(3*6)+(2*1)+(1*3)=144
144 % 10 = 4
So 224786-13-4 is a valid CAS Registry Number.

224786-13-4Downstream Products

224786-13-4Relevant articles and documents

Synthesis of [3H] vardenafil, Levitra, using a new labeling technique

Pleiss

, p. 1241 - 1247 (2003)

Tritium was introduced into the new orally active, selective phosphodiesterase type V (PDE V) inhibitor vardenafil (Levitra), by reduction of a suitable amide precursor with freshly prepared lithium aluminum tritide. A specific activity of 52.7 Ci/mmol (1

2-phenyl substituted imidazotriazinones as phosphodiesterase inhibitors

-

, (2008/06/13)

The 2-phenyl-substituted imidazotriazinones having short, unbranched alkyl radicals in the 9-position are prepared from the corresponding 2-phenyl-imidazotriazinones by chlorosulphonation and subsequent reaction with the amines. The compounds inhibit cGMP-metabolizing phosphodiesterases and are suitable for use as active compounds in pharmaceuticals, for the treatment of cardiovascular and cerebrovascular disorders and/or disorders of the urogenital system, in particular for the treatment of erectile dysfunction.

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