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| | CHROMOTROPE 2R Basic information |
| Product Name: | CHROMOTROPE 2R | | Synonyms: | CHROMOTRORE;Chromotrope 2R, pure;2,7-Naphthalenedisulfonic acid, 4,5-dihydroxy-3-(phenylazo)-, disodium salt;2-(Phenylazo)chromotropic acid disodium salt, Acid Red29;C.I.Mordant Blue 80;Chromotrope N-2R;Chromotrop 2 R, C.I. 16570, for complexometry;Acid phloxin GR | | CAS: | 4197-07-3 | | MF: | C16H10N2Na2O8S2 | | MW: | 468.37 | | EINECS: | 224-085-0 | | Product Categories: | | | Mol File: | 4197-07-3.mol |  |
| | CHROMOTROPE 2R Chemical Properties |
| storage temp. | Store at RT. | | Colour Index | 16570 | | form | Crystalline Powder | | color | Reddish-brown | | Water Solubility | Soluble in water (1 mg/ml). | | Stability: | Stable. Incompatible with strong oxidizing agents. |
| Hazard Codes | Xi | | Risk Statements | 36/37/38 | | Safety Statements | 26-36 | | WGK Germany | 3 | | RTECS | QJ6418000 | | HS Code | 32041200 |
| | CHROMOTROPE 2R Usage And Synthesis |
| Chemical Properties | dark brown powder | | Uses | Suitable for modified Gomori Trichrome stain | | Uses | Employed as an indicator for complexometry. It is also applied as a stain used in modified Gomori Trichrome stain. Used as a stain for cytology. | | Preparation | aniline diazo, and 4,5-Dihydroxynaphthalene-2,7-disulfonic acid?coupling. | | Definition | ChEBI: An organic sodium salt that is the disodium salt of 4,5-dihydroxy-3-(phenyldiazenyl)naphthalene-2,7-disulfonic acid. It is used as the plasma stain in trichrome techniques. | | Properties and Applications | red. Soluble in water for red orange, soluble in soluble fiber element, moderate soluble in alcohol and acetone is red light purple, insoluble in other organic solvents. The strong sulfuric acid for wine red, diluted into pink; In nitric acid solution for red, and then to orange. Add hydrochloric acid in aqueous solution for the red orange; Add thick sodium hydroxide solution for deep red wine.
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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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4-5
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2
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2
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1
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2
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AATCC
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4-5
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2-3
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1
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1
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2-3
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| | CHROMOTROPE 2R Preparation Products And Raw materials |
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