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314040-09-0

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314040-09-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 314040-09-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,1,4,0,4 and 0 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 314040-09:
(8*3)+(7*1)+(6*4)+(5*0)+(4*4)+(3*0)+(2*0)+(1*9)=80
80 % 10 = 0
So 314040-09-0 is a valid CAS Registry Number.

314040-09-0Relevant articles and documents

Synthesis and photochromic properties of substituted 3H-naphtho[2,1-b] pyrans

Gabbutt, Christopher D.,Heron, B. Mark,Instone, Alicia C.,Horton, Peter N.,Hursthouse, Michael B.

, p. 463 - 471 (2007/10/03)

The synthesis and spectroscopic properties of novel 3H-naphtho[2,1-b]pyrans are described. Subtle variation of the colour of the photo-generated merocyanine dyes derived from these naphthopyrans can be accomplished by controlling the steric interactions between a terminal pyrrolidine donor group and a proximal substituent.

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