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68637-85-4

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68637-85-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 68637-85-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,6,3 and 7 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 68637-85:
(7*6)+(6*8)+(5*6)+(4*3)+(3*7)+(2*8)+(1*5)=174
174 % 10 = 4
So 68637-85-4 is a valid CAS Registry Number.

68637-85-4Relevant articles and documents

Photochemical and thermal transformations of 1-aryloxy-2- and 4-azidoanthraquinones

Klimenko, Lubov S.,Pritchina, Elena A.,Gritsan, Nina P.

, p. 1639 - 1644 (2007/10/03)

The photolysis of 1-aryloxy-2-azidoanthraquinones (3) in benzene is described herein which gave 1-hydroxy-2-arylaminoanthraquinones (4) and two types of 5H-naphtho[2,3-c]phenoxazine-8,13-diones (5 and 6). Thermolysis of 3 yielded only one of phenoxazines

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