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62421-03-8

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62421-03-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 62421-03-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,2,4,2 and 1 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 62421-03:
(7*6)+(6*2)+(5*4)+(4*2)+(3*1)+(2*0)+(1*3)=88
88 % 10 = 8
So 62421-03-8 is a valid CAS Registry Number.

62421-03-8Downstream Products

62421-03-8Relevant articles and documents

Synthesis and Reactions of o-Naphthothioquinone Methides

Okazaki, Renji,Sunagawa, Kazuhiko,Kotera, Mitsuharu,Kang, Kyung-Tae,Inamoto, Naoki

, p. 243 - 246 (1982)

Photochemical reactions of naphthodithiole-3-thione (7), naphthodithiole-1-thione (10), and naphthodithiole-3-thione (16) with cyclohexene and 2,3-dimethyl-2-butene afford the corresponding naphthothioquinone methides.The thioquinone methide from 7 exists only as a monomeric form and is the first isolable o-thioquinone methide, while that from 16 exists as a dimer of type in the solid state although the chemical behavior suggests the presence of a monomeric form in solution to a very minor extent.In the case of the thioquinone methide from 10, there exists an equilibrium between a monomer and a dimer of type.Some cycloadditions of these thioquinone methides are also described.

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