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81462-77-3

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81462-77-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81462-77-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,4,6 and 2 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 81462-77:
(7*8)+(6*1)+(5*4)+(4*6)+(3*2)+(2*7)+(1*7)=133
133 % 10 = 3
So 81462-77-3 is a valid CAS Registry Number.

81462-77-3Relevant articles and documents

Synthesis and photochromism of naphthopyrans bearing naphthalimide chromophore: Predominant thermal reversibility in color-fading and fluorescence switch

Song, Liwen,Yang, Yuheng,Zhang, Qiong,Tian, He,Zhu, Weihong

, p. 14648 - 14658 (2012/03/13)

Two novel photochromic naphthopyrans containing naphthalimide moieties (Nip1 and Nip2) were studied in solution under flash photolysis conditions, exhibiting highly photochromic response, rapid thermal bleaching rate and good fatigue-resistance. Owing to

SYNTHESES AND PROPERTIES OF SOME DERIVATIVES OF N--NAPHTHALIMIDE

Jankowski, Zdzislaw,Stolarski, Roland

, p. 555 - 564 (2007/10/02)

Syntheses of N--naphthalimide and N--naphthalimide derivatives, unreported so far in the literature have been worked out, and the products are characterized.The usefulness of some of them as optical brightening agents has been established from their fluorescence spectra.The phenomenon of an intramolecular energy transfer from the benzotriazole to naphthalimide ring systems has been observed for the derivatives of N--naphthalimide.

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