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119540-98-6

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119540-98-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 119540-98-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,9,5,4 and 0 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 119540-98:
(8*1)+(7*1)+(6*9)+(5*5)+(4*4)+(3*0)+(2*9)+(1*8)=136
136 % 10 = 6
So 119540-98-6 is a valid CAS Registry Number.

119540-98-6Downstream Products

119540-98-6Relevant articles and documents

Synthesis and structure elucidation of the condensation products between thiophene dicarbaldehydes and aromatic amines. Potential analgesic and anti-inflammatory agents

Benachenhou,Mesli,El Borai,Hanquet,Guilard

, p. 1531 - 1534 (2007/10/02)

Thiophene-3,4-dicarbaldehyde I reacts in the presence of 2-mercaptoethanol to yield N-aryl-5,6-dihydro-4-oxo-4H-thieno[3,4-c]pyrroles 2 and N-aryl-4-arylimino-5,6-dihydro-4H-thieno[3,4-c]pyrroles 3, while thiophene 2,3-dicarbaldehyde 4 reacts with aromatic amines to give N-aryl-5,6-dihydro-6-oxo-4H-thieno[2,3-c]pyrroles 5 in good yields. Labeling experiments and nmr spectral analysis give evidence for the possible reaction mechanism.

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