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1259401-36-9

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1259401-36-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1259401-36-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,9,4,0 and 1 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1259401-36:
(9*1)+(8*2)+(7*5)+(6*9)+(5*4)+(4*0)+(3*1)+(2*3)+(1*6)=149
149 % 10 = 9
So 1259401-36-9 is a valid CAS Registry Number.

1259401-36-9Relevant articles and documents

CHROMENE COMPOUND

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, (2012/05/20)

A chromene compound which contains a skeleton represented by the following formula (1) and has high color optical density at the time of exposure, double peak characteristic, little initial coloration, a practical fading speed and durability. (wherein R1 is an electron donor group having a Hammett constant of less than 0, the ring including X is a hetero ring formed together with the 7-position and 8-position carbon atoms, and X is an oxygen atom, sulfur atom or group represented by =NR2 directly bonded to the 7-position carbon atom.)

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