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74357-25-8

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74357-25-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 74357-25-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,3,5 and 7 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 74357-25:
(7*7)+(6*4)+(5*3)+(4*5)+(3*7)+(2*2)+(1*5)=138
138 % 10 = 8
So 74357-25-8 is a valid CAS Registry Number.

74357-25-8Relevant articles and documents

Intramolecular Through-Space Interaction in 2-(p-Methoxyphenyl)-2-butenyl 9-Phenanthrenecarboxylate as Evidenced by Their Isomerization Behavior

Itoh, Hiroki,Senda, Yasuhisa,Sakuragi, Hirochika,Tokumatu, Katsumi

, p. 1312 - 1315 (2007/10/02)

Intramolecular quenching of the excited singlet state of a phenanthrene moiety was more efficient in (E)-2-(p-methoxyphenyl)-2-butenyl 9-phenanthrenecarboxylate (E-ABP)n than in its Z isomer (Z-ABP) in benzene.The quenching is proposed to proceed in a through-space fashion on the basis of efficiencies of isomerization and photophysical processes as well as molecular orbital calculations.

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