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153136-32-4

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153136-32-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 153136-32-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,3,1,3 and 6 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 153136-32:
(8*1)+(7*5)+(6*3)+(5*1)+(4*3)+(3*6)+(2*3)+(1*2)=104
104 % 10 = 4
So 153136-32-4 is a valid CAS Registry Number.

153136-32-4Downstream Products

153136-32-4Relevant articles and documents

FORMATION OF 4,7-DIOXO-5-ACETAMIDO-4,7-DIHYDROBENZOFURAZAN FROM 4-OXO-5-HYDROXIMINO-4,5,6,7-TETRAHYDROBENZOFURAZAN AND -FUROXAN AND INVESTIGATION OF ITS REACTION WITH AMINES

Samsonov, V. A.,Volodarskii, L. B.

, p. 455 - 459 (2007/10/02)

The reaction of 4-oxo-5-hydroximino-4,5,6,7-tetrahydrobenzofurazan and 4-oxo-5-hydroximino-4,5,6,7-tetrahydrobenzofuroxan with acetic acid anhydride in the presence of an acid gives 4,7-diacetoxy-5-acetamidobenzofurazan and 2,3-diacetoximino-5-acetamido-1,4-benzoquinone, respectively, which were used to obtain 4,7-dioxo-4,7-dihydrobenzofurazan.The synthesized quinone reacts with amines to give the corresponding aminoquinones; when 4,7-dioxo-5-acetamido-6-anilino-4,7-dihydrobenzofurazan is heated, it is readily converted to 5-phenyl-6-methyl-4,8-dioxo-1H-imidazobenzofurazan.

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