| Identification | More | [Name]
CHROMOTROPE 2B | [CAS]
548-80-1 | [Synonyms]
2-(4-NITROPHENYLAZO)CHROMOTROPIC ACID DISODIUM SALT
4,5-DIHYDROXY-3-(P-NITROPHENYLAZO)-2,7-NAPHTHALENEDISULFONIC
4,5-DIHYDROXY-3-(P-NITROPHENYLAZO)-2,7-NAPHTHALENEDISULFONIC ACID DISODIUM SALT
4-(P-NITROPHENYLAZO)CHROMOTROPIC ACID SODIUM SALT
ACID RED 176
CHROMOTROP 2 B
CHROMOTROPE
CHROMOTROPE 2B
CI 16575
CI NO 16575
DISODIUM 4 5-DIHYDROXY-3-(P-NITROPHENYLAZO)-2 7-NAPHTHALENEDISULFONATE
P-NITROBENZENEAZOCHROMOTROPIC ACID SODIUM SALT
2,7-Naphthalenedisulfonicacid,4,5-dihydroxy-3-[(4-nitrophenyl)azo-]-,disodiumsalt
7-naphthalenedisulfonicacid,4,5-dihydroxy-3-[(4-nitrophenyl)azo]-disodium
AcidRed176(16575)
Chromotropicacid2B
Acid Red 176~C.I. 16575
disodium 4,5-dihydroxy-3-(p-nitrophenylazo)naphthalene-2,7-disulphonate
CHROMOTROPE 2B (C.I. No 16575 )
Chromotrope2B,97% | [EINECS(EC#)]
208-959-9 | [Molecular Formula]
C16H9N3Na2O10S2 | [MDL Number]
MFCD00003951 | [Molecular Weight]
513.37 | [MOL File]
548-80-1.mol |
| Safety Data | Back Directory | [Hazard Codes ]
Xi | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin . | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing . | [WGK Germany ]
3
| [TSCA ]
Yes |
| Hazard Information | Back Directory | [Chemical Properties]
dark green to dark purple crystalline powder | [Uses]
As a dye; as a reagent for boric acid or borates. | [Uses]
Chromotrope 2B is a chromotropic acid azo dye and a groundwater pollutant removed from the environment via photoelectrochemical mineralization. | [Preparation]
4-Nitrobenzenamine diazo, and 4,5-Dihydroxynaphthalene-2,7-disulfonic acid?coupling. | [Properties and Applications]
blue-ray red. Soluble in water for yellow light red, not soluble in alcohol. The strong sulfuric acid for dark purple, diluted into yellow light red solution. In water solution to join hydrochloric acid solution to become yellow, add sodium hydroxide for blue-ray red.
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Standard
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Light Fastness
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Soaping
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Persperation Fastness
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Oxygen bleaching
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Fastness to seawater
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Fading
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Stain
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Fading
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Stain
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Fading
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Stain
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ISO
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6-7
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4
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4
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4-5
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