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1028592-42-8

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1028592-42-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1028592-42-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,8,5,9 and 2 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1028592-42:
(9*1)+(8*0)+(7*2)+(6*8)+(5*5)+(4*9)+(3*2)+(2*4)+(1*2)=148
148 % 10 = 8
So 1028592-42-8 is a valid CAS Registry Number.

1028592-42-8Relevant articles and documents

Manipulation of an intramolecular NH ... O hydrogen bond by photoswitching between stable E/Z isomers of the cinnamate framework

Matsuhira, Takashi,Yamamoto, Hitoshi,Okamura, Taka-Aki,Ueyama, Norikazu

experimental part, p. 1926 - 1933 (2009/01/31)

Novel carboxylic acid derivatives were synthesized, which allowed switching of the intramolecular distance between amide group and carboxylic oxygen atoms using E to Z photoisomerization of the cinnamate framework. An intramolecular NH ... O hydrogen bond was formed in the Z carboxylate compound not only in solution but also in the solid state. The pKa value of the carboxylic acid was lowered as a consequence of the E/Z photoisomerization. The Royal Society of Chemistry.

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