603-45-2
Aurin
CAS: 603-45-2
Molecular Formula: C19H14O3
603-45-2 - Names and Identifiers
| Name | Aurin |
| Synonyms | Aurin C.I. 43800 Rosolic aci Spirit Aurin 4,4'-Dihydroxyfuchsone Corallin Spirit Soluble Rosolic acid (CI x 43800) CorallinAurinp-Rosolic Acid 4-(p,p′-Dihydroxybenzhydrylidine)-2,5-cyclohexadien-1-one 4-[bis(4-hydroxyphenyl)methylidene]cyclohexa-2,5-dien-1-one 4-[Bis(4-hydroxyphenyl)methylene]-2,5-cyclohexadienone, Aurin |
| CAS | 603-45-2 |
| EINECS | 210-041-8 |
| InChI | InChI=1/C19H14O3/c20-16-7-1-13(2-8-16)19(14-3-9-17(21)10-4-14)15-5-11-18(22)12-6-15/h1-12,20-21H |
603-45-2 - Physico-chemical Properties
| Molecular Formula | C19H14O3 |
| Molar Mass | 290.31 |
| Density | 1.2497 (rough estimate) |
| Melting Point | 309°C (decompose) |
| Boling Point | 372.4°C (rough estimate) |
| Flash Point | 296.2°C |
| Water Solubility | Soluble in alcohol, sodium hydroxide, potassium hydroxide and strong acids. Insoluble in water. |
| Solubility | Solubility Practically insoluble in water, benzene; freely soluble in ethanol |
| Vapor Presure | 2.11E-12mmHg at 25°C |
| Appearance | Crystalline Powder |
| Color | Red-brown to brownish-red |
| Maximum wavelength(λmax) | ['534.6nm, 479.5nm, 482nm'] |
| Merck | 14,881 |
| BRN | 2055205 |
| pKa | 6.98(at 25℃) |
| Storage Condition | Store at room temperature. |
| Stability | Stable. Incompatible with strong oxidizing agents. |
| Refractive Index | 1.4200 (estimate) |
| Physical and Chemical Properties | Name of Rose Red acid: Resin acid, Rose Red acid, rose acid, Gold red, deep red crystal, metallic luster. Rose acid also has yellow-brown patches with dark green metal-like. Rose color acid is soluble in alcohol as golden yellow solution, soluble in sodium hydroxide or potassium hydroxide solution as Carmine Red, soluble in concentrated sulfuric acid, 70% Sulfuric acid, hydrochloric acid or perchloric acid is yellow to orange, slightly soluble in glacial acetic acid, slightly soluble in ether and chloroform, practically insoluble in (0.12%) and benzene. |
603-45-2 - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R36/38 - Irritating to eyes and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. S37/39 - Wear suitable gloves and eye/face protection |
| WGK Germany | 3 |
| TSCA | Yes |
| HS Code | 29145090 |
603-45-2 - Reference Information
| color index | 43800 |
| pH indicator color change ph range | 6.8(YELLOW)-8.2(RED) |
| main applications | electrorheological materials, films patterning, antireflective coatings, thermochromic materials, photoresists, film patterning, recording materials, lithium battery, semiconductors, printing materials, inks, corrosion inhibitors, adhesives, drugs, detecting viable cells, treatment of Alzheimer's disease |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| use | rose red acid can be used as a qualitative reagent for carbon dioxide in beverage water, and can also be used to distinguish human milk from cow's milk. Rosa color acid is also a dye intermediate. The acid belongs to hydroxytriphenylmethane dye. It has no dyeing value for textile fibers. It is mainly used as an indicator in analytical chemistry. Its pH value changes from 6.2 to 8.0, and its color changes from yellow to red. |
Last Update：2024-04-10 22:29:15
Supplier List
Spot supply
Product Name: Aurin Request for quotationCAS: 603-45-2
Tel: +86-17551318830
Email: r@reformchem.com
Mobile: +86-17551318830
QQ: 3787852685
Spot supply
Product Name: Aurin Request for quotationCAS: 603-45-2
Tel: +86-17551318830
Email: r@reformchem.com
Mobile: +86-17551318830
QQ: 3785839865
Product Name: Aurin Request for quotation
CAS: 603-45-2
Tel: 17505222756
Email: pules.cn@gmail.com
Mobile: +86-17551318830
Wechat: 17505222756
CAS: 603-45-2
Tel: 17505222756
Email: pules.cn@gmail.com
Mobile: +86-17551318830
Wechat: 17505222756
Spot supply
Product Name: Rosolic acid Visit Supplier Webpage Request for quotationCAS: 603-45-2
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Wechat: 18301782025
Spot supply
Product Name: Aurin Request for quotationCAS: 603-45-2
Tel: +86-17551318830
Email: r@reformchem.com
Mobile: +86-17551318830
QQ: 3787852685
Spot supply
Product Name: Aurin Request for quotationCAS: 603-45-2
Tel: +86-17551318830
Email: r@reformchem.com
Mobile: +86-17551318830
QQ: 3785839865
Product Name: Aurin Request for quotation
CAS: 603-45-2
Tel: 17505222756
Email: pules.cn@gmail.com
Mobile: +86-17551318830
Wechat: 17505222756
CAS: 603-45-2
Tel: 17505222756
Email: pules.cn@gmail.com
Mobile: +86-17551318830
Wechat: 17505222756
Spot supply
Product Name: Rosolic acid Visit Supplier Webpage Request for quotationCAS: 603-45-2
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Wechat: 18301782025
View History