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855-26-5

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855-26-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 855-26-5 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 8,5 and 5 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 855-26:
(5*8)+(4*5)+(3*5)+(2*2)+(1*6)=85
85 % 10 = 5
So 855-26-5 is a valid CAS Registry Number.

855-26-5Relevant articles and documents

1-PYRENYLMETHYL ESTERS, PHOTOLABILE PROTECTING GROUPS FOR CARBOXYLIC ACIDS

Iwamura, Michiko,Ishikawa, Touru,Koyama, Yukiyoshi,Sakuma, Keisuke,Iwamura, Hiizu

, p. 679 - 682 (2007/10/02)

1-Diazomethylpyrenes were prepared and reacted with carboxylic acids to give 1-pyrenylmethyl esters.The fluorescent esters were photolysed at 340 nm in methanol to form the starting acids and the corresponding 1-methoxymethylpyrenes in high yields.

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