| dbo:abstract | - Mordant brown 33 (MB33) is 2,4-diamino-5-(2-hydroxy-5-nitrophenylazo) benzene sulfonic acid sodium salt. The UV-Visible spectra of MB33 in all mixtures investigated display three absorption bands in 50% ethanol within all the pH ranges 1.5-13.3 using Thiel buffer the maximum absorption of these bands is located at 438, 453 and a double head band at 410 and 475 nm . The band at 438 nm corresponds to absorption attributed to the cationic form (LH6) of MB33 (whereas L indicates to the parent structure of ligand without hydrogen protons) and disappears at pH > 3.0. The band at 453 nm corresponds to the absorption of the neutral form of the reagent (LH5-). The double head bands at 410 and 475 nm correspond to the di-anionic (LH42−) of MB33. (en)
- Castanho mordente 33 (MB33, do inglês Mordant brown 33) é o composto orgânico, corante azo-composto, de fórmula C12H10N5NaO6S, quimicamente, sal de sódio de ácido 2,4-diamino-5-(2-hidroxi-5-nitrofenilazo) benzeno sulfônico e massa molecular 375.29. Classificado com o número CAS 3618-62-0, C.I. 13250 e CBNumber CB3216185. (pt)
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| dbo:alternativeName | - Mordant brown 33 (en)
- Chrome Brown RH (en)
- Sodium 2,4-diamino-5-[2-(3-nitro-6-oxocyclohexa-2,4-dien-1-ylidene)hydrazin-1-yl]benzenesulfonate (en)
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| dbo:iupacName | - Sodium 2,4-diamino-5-[2-(3-nitro-6-oxocyclohexa-2,4-dien-1-ylidene)hydrazin-1-yl]benzene-1-sulfonate (en)
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| dbp:imagefile | - Mordant Brown 33.png (en)
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| dbp:imagename | - Wireframe model of a mordant brown 33 tautomer (en)
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| dbp:othernames | - Mordant brown 33 (en)
- Chrome Brown RH (en)
- Sodium 2,4-diamino-5-[2-hydrazin-1-yl]benzenesulfonate (en)
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| dbp:systematicname | - Sodium 2,4-diamino-5-[2-hydrazin-1-yl]benzene-1-sulfonate (en)
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| rdfs:comment | - Mordant brown 33 (MB33) is 2,4-diamino-5-(2-hydroxy-5-nitrophenylazo) benzene sulfonic acid sodium salt. The UV-Visible spectra of MB33 in all mixtures investigated display three absorption bands in 50% ethanol within all the pH ranges 1.5-13.3 using Thiel buffer the maximum absorption of these bands is located at 438, 453 and a double head band at 410 and 475 nm . The band at 438 nm corresponds to absorption attributed to the cationic form (LH6) of MB33 (whereas L indicates to the parent structure of ligand without hydrogen protons) and disappears at pH > 3.0. The band at 453 nm corresponds to the absorption of the neutral form of the reagent (LH5-). The double head bands at 410 and 475 nm correspond to the di-anionic (LH42−) of MB33. (en)
- Castanho mordente 33 (MB33, do inglês Mordant brown 33) é o composto orgânico, corante azo-composto, de fórmula C12H10N5NaO6S, quimicamente, sal de sódio de ácido 2,4-diamino-5-(2-hidroxi-5-nitrofenilazo) benzeno sulfônico e massa molecular 375.29. Classificado com o número CAS 3618-62-0, C.I. 13250 e CBNumber CB3216185. (pt)
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| rdfs:label | - Mordant brown 33 (en)
- Castanho mordente 33 (pt)
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