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72001-27-5

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72001-27-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 72001-27-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,0,0 and 1 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 72001-27:
(7*7)+(6*2)+(5*0)+(4*0)+(3*1)+(2*2)+(1*7)=75
75 % 10 = 5
So 72001-27-5 is a valid CAS Registry Number.

72001-27-5Downstream Products

72001-27-5Relevant articles and documents

10-Thia-anthracenes. Part 3. A Re-examination of the Reaction of 9-Phenylthioxanthylium Salt and Phenyl-lithium

Hori, Mikio,Kataoka, Tadashi,Shimizu, Hiroshi,Ban, Masatoshi,Matsushita, Hitoshi

, p. 187 - 194 (2007/10/02)

Reaction of 9-phenylthioxanthylium salt (1) with phenyl-lithium afforded eight compounds, 9-phenyl- (2), 9,9-diphenyl- (3). 3,9-diphenyl (4), 3,9,9-triphenyl- (5), and 4,9,9-triphenyl-thioxanthene (6), 9,9'-diphenyl-9,9'-bithioxanthenyl (7), thioxanthone (8), and 9,9'-diphenyldithioxanth-9-yl peroxide (9).Their structures were determined by comparison with the authentic samples.Six samples, (3)-(6), 2,9,9-triphenyl- (30), 9-(biphenyl-4-yl)-9-phenylthioxanthene (31) were independently synthesized in order to determine the structures of two pairs of positional isomers, 3,4, and 5,6.A radical mechanism contributed to the reaction of compound (1) with phenyl-lithium.

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