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75130-25-5

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75130-25-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 75130-25-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,1,3 and 0 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 75130-25:
(7*7)+(6*5)+(5*1)+(4*3)+(3*0)+(2*2)+(1*5)=105
105 % 10 = 5
So 75130-25-5 is a valid CAS Registry Number.

75130-25-5Relevant articles and documents

Compound and its as L-type calcium channel blocker or/and application of acetylcholine esterase inhibitors

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Paragraph 0414; 0416-0421, (2016/10/07)

Disclosed in this invention are compounds and the uses as L-type calcium channel blocker and/or acetylcholinesterase inhibitor thereof. The uses of said compounds in the manufactures of a medicament for the treatment of cardiovascular diseases, apoplexy or senile dementia are also disclosed in the present invention.

Mild and facile cleavage of 2-cyanoethyl ester using sodium sulfide or tetrabutylammonium fluoride. Synthesis of 1,4-dihydropyridine monocarboxylic acids and unsymmetrical 1,4-dihydropyridine dicarboxylates

Ogawa,Hatayama,Maeda,Kita

, p. 1579 - 1589 (2007/10/02)

Several 3-(2-cyanoethyl)-1,4-dihydropyridine carboxylates (16) were prepared in moderate to good yields by means of the Hantzsch reaction. Treatment of these carboxylates with a weak base such as sodium sulfide or tetrabutylammonium fluoride at room temperature afforded smoothly the corresponding 1,4-dihydropyridine monocarboxylic acids (18) in good yields. The monocarboxylic acids 18n and 18o were esterified with 2-nitrooxypropanol or N-(2-hydroxyethyl)nicotinamide p-toluenesulfonic acid salt to afford the selective coronary vasodilators CD-349 (5) and CD-832 (6), respectively.

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