disodium 7-hydroxy-8-phenylazonaphthalene-1,3-disulphonate
Acid Orange 10
CAS: 1936-15-8
Molecular Formula: C16H13N2NaO7S2
disodium 7-hydroxy-8-phenylazonaphthalene-1,3-disulphonate - Names and Identifiers
disodium 7-hydroxy-8-phenylazonaphthalene-1,3-disulphonate - Physico-chemical Properties
| Molecular Formula | C16H13N2NaO7S2 |
| Molar Mass | 432.4 |
| Density | 0.80g/mLat 20°C |
| Melting Point | 141 °C |
| Flash Point | 14 °C |
| Water Solubility | 5 g/100 mL (20 ºC) |
| Solubility | Soluble in water and ethanol, insoluble in ether and chloroform |
| Appearance | Yellow-red or vermilion powder or crystalline tablets |
| Color | Red to Orange |
| Maximum wavelength(λmax) | ['475 nm'] |
| BRN | 4120705 |
| pKa | 12.8(at 25℃) |
| PH | 9 (10g/l, H2O, 20℃) |
| Storage Condition | room temp |
| Stability | Stable. Incompatible with strong oxidizing agents. |
| Sensitive | Easily absorbing moisture |
| MDL | MFCD00012457 |
| Physical and Chemical Properties | Soluble in water is orange, slightly soluble in ethanol is Golden Orange, soluble in fibrinolytic, insoluble in other organic solvents. When the concentrated sulfuric acid is yellow and orange, it is diluted to be yellow, when the concentrated nitric acid is a red wine solution, and then turns to orange. Its aqueous solution with concentrated hydrochloric acid was yellow orange. Its aqueous solution was orange-brown in color when it was exposed to concentrated sodium hydroxide. |
disodium 7-hydroxy-8-phenylazonaphthalene-1,3-disulphonate - Risk and Safety
| Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R11 - Highly Flammable |
| Safety Description | S22 - Do not breathe dust. S24/25 - Avoid contact with skin and eyes. S37/39 - Wear suitable gloves and eye/face protection S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S16 - Keep away from sources of ignition. S7 - Keep container tightly closed. S36/37 - Wear suitable protective clothing and gloves. |
| UN IDs | UN 1987 3/PG 2 |
| WGK Germany | 3 |
| RTECS | QJ6500000 |
| TSCA | Yes |
| HS Code | 32041200 |
| Toxicity | LD50 orally in Rabbit: > 3000 mg/kg |
disodium 7-hydroxy-8-phenylazonaphthalene-1,3-disulphonate - Reference
| Reference Show more | 1. Chen Lin, Wen Jiaxin, Liu Xiaoxiao, et al. HPLC combined with LC-MS/MS method for rapid detection of 12 yellow pigments in pangolin [J]. Chinese patent medicine 2017 03(v.39):118-122. 2. Xia X, Zhou Z, Wu S, Wang D, Zheng S, wang G. Adsorption Removal of Multiple Dyes Using Biogenic Selenium Nanoparticles from an Escherichia coli Strain Overexpressed Selenite Reductase CsrF. Nanomaterials. 2018; 8(4):234. https://doi.org/10.3390/nano804023 3. [IF = 5.076] Xian Xia et al."Adsorption Removal of Multiple Dyes Using Biogenic Selenium Nanoparticles from an Escherichia coli Strain Overexpressed Selenite Reductase CsrF." Nanomaterials-Basel. 2018 Apr;8(4):234 4. [IF = 4.32] Shijuan Wu et al."Reduction of tellurite in Shinella sp. WSJ-2 and adsorption removal of multiple dyes and metals by biogenic tellurium nanorods." Int Biodeter Biodegr. 2019 Oct;144:104751 |
disodium 7-hydroxy-8-phenylazonaphthalene-1,3-disulphonate - Introduction
The aqueous solution is orange-yellow, the ethanol solution is orange, and the hydrochloric acid has no change to the aqueous solution. It is yellow-red when sodium hydroxide is encountered, and crystalline calcium salt is formed when calcium chloride is encountered. The maximum absorption wavelength is 475nm. pH color change range 11.5 (yellow) ~ 14.0 (orange red)
Last Update：2022-10-16 17:14:43
disodium 7-hydroxy-8-phenylazonaphthalene-1,3-disulphonate - Reference Information
| color index | 16230 |
| pH indicator color change ph range | yellow (11.5) to pink (14.0) |
| biological field application | Detecting lung cancer metastasis; measuring glycated proteins; ophthalmic devices |
| (IARC) carcinogen classification | 3 (Vol. 8, Sup 7) 1987 |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| use | is used for dyeing silk and woolen fabrics, dyeing paper and making ink, coloring wood products and making pencils, and biological coloring. acid-base indicator, biological stain. Used for Mallory's connective tissue staining, etc. SDS-capillary electrophoresis protein separation standard, is also a tracking dye for nucleic acid electrophoresis. It migrates faster than bromophenol blue and can detect smaller DNA fragments. acid-base indicator, pH color change range 11.5 (yellow) to 14.0 (orange red); Biological staining |
| production method | aniline diazotization is coupled with g salt and salted out. G salt 422 sodium carbonate 88 aniline 118 refined salt 412 sodium nitrite 58 sodium sulfate 40 hydrochloric acid 99 |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 19:05:10
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Product Name: Orange G6 Visit Supplier Webpage Request for quotationCAS: 1936-15-8
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Multiple SpecificationsSpot supply
Product Name: Orange G6 Visit Supplier Webpage Request for quotationCAS: 1936-15-8
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Wechat: 18301782025
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