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69938-74-5

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69938-74-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 69938-74-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,9,3 and 8 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 69938-74:
(7*6)+(6*9)+(5*9)+(4*3)+(3*8)+(2*7)+(1*4)=195
195 % 10 = 5
So 69938-74-5 is a valid CAS Registry Number.

69938-74-5Downstream Products

69938-74-5Relevant academic research and scientific papers

Regioselective Syntheses of 3,3'-Bijuglone, Mamegakinone, Dianellinone, cyclo-Trijuglone, Xylospyrin, and Trianellinone by Phenol-Quinone Addition

Brockmann, Hans,Laatsch, Hartmut

, p. 433 - 447 (2007/10/02)

Regioselective phenol-quinone addition of juglone (1a), 7-methyljuglone (1b), and stypandrone (1c) in pyridine yields the dimers 3,3-bijuglone (5a), mamegakinone (5c), and dianellinone (5e).In acetic acid mainly the cyclo trimers cyclo-trijuglone (12a), xylospyrin (12d), and trianellinone (12g) are obtained.

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