Cas 115174-47-5,6,8-dimethyl-1,3-diphenylpyrido<6,1-f>xanthine

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Check Digit Verification of cas no

The CAS Registry Mumber 115174-47-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,5,1,7 and 4 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 115174-47:
(8*1)+(7*1)+(6*5)+(5*1)+(4*7)+(3*4)+(2*4)+(1*7)=105
105 % 10 = 5
So 115174-47-5 is a valid CAS Registry Number.

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115174-47-5Relevant articles and documents

PURINES AND PYRIMIDINES AND CONDENSED SYSTEMS BASED ON THEM. 4. FORMATION OF PYRIDOXANTHINES IN THE REACTION OF 7-AMINOTHEOPHYLLINE WITH KETONES

Kuz'menko, V. V.,Pozharskii, A. F.,Chernyshev, A. I.,Nanavyan, I. M.

, p. 1243 - 1246 (1987)

7-Aminotheophylline reacts with acetone and acetophenone in the presence of anhydrous zinc chloride, forming 1,3,6,8-tetramethyl- and 6,8-dimethyl-1,3-diphenylpyridoxanthines, respectively. 9-Aminotheophylline gives an analogous reaction product wi

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115174-47-5