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1351973-40-4

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1351973-40-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1351973-40-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,5,1,9,7 and 3 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1351973-40:
(9*1)+(8*3)+(7*5)+(6*1)+(5*9)+(4*7)+(3*3)+(2*4)+(1*0)=164
164 % 10 = 4
So 1351973-40-4 is a valid CAS Registry Number.

1351973-40-4Downstream Products

1351973-40-4Relevant articles and documents

Photochromic and thermochromic spiranes. 34.*synthesis of photochromic 5-(4,5-diphenyl-1,3-oxazol-2-yl)-substituted spirobenzochromeneindolines

Voloshin,Chernyshev,Metelitsa,Minkin

scheme or table, p. 865 - 876 (2012/04/10)

A simple and effective method is proposed for the synthesis of 4,5-diphenyloxazolyl-substituted o-hydroxynaphthaldehydes. Photochromic spirobenzochromeneindolines containing a 4,5-diphenyl-oxazole group at position 5 of the benzochromene fragment were obtained. In the cyclic form the new (diphenyloxazolyl)-substituted spiropyrans exhibit luminescent properties.

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