DISPERSE RED 19
- CAS No.
- 2734-52-3
- Chemical Name:
- DISPERSE RED 19
- Synonyms
- CI 11130;DISPERSE RED 19;C.I.Disperse Red 19;Disperse Red 19, pure;disperse red 19 (C.I. 11130);C.I.Disperse Red 19:C.I.11130;Disperse Red 19 Dye content 97 %;2,2'-(4'-Nitroazobenzene-4-ylimino)bisethanol;2,2’-[[4-[(4-nitrophenyl)azo]phenyl]imino]bis-ethano;2,2'-[[4-[(4-nitrophenyl)azo]phenyl]imino]bisethanol
- CBNumber:
- CB8669319
- Molecular Formula:
- C16H18N4O4
- Molecular Weight:
- 330.34
- MDL Number:
- MFCD00044367
- MOL File:
- 2734-52-3.mol
- MSDS File:
- SDS
| Melting point | >300 °C(lit.) |
|---|---|
| Boiling point | 467.79°C (rough estimate) |
| Density | 1.1843 (rough estimate) |
| refractive index | 1.6000 (estimate) |
| pka | 14.19±0.10(Predicted) |
| Colour Index | 11130 |
| form | Crystalline Powder |
| color | Dark purple to dark red-brown |
| Water Solubility | 234.5ug/L(25 ºC) |
| EPA Substance Registry System | C.I. Disperse Red 19 (2734-52-3) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H302-H317 | |||||||||
| Precautionary statements | P280-P301+P312+P330-P302+P352 | |||||||||
| Hazard Codes | Xn | |||||||||
| Risk Statements | 22-43 | |||||||||
| Safety Statements | 24/25-36/37 | |||||||||
| WGK Germany | 3 | |||||||||
| NFPA 704 |
|
DISPERSE RED 19 price More Price(2)
DISPERSE RED 19 Chemical Properties,Uses,Production
Chemical Properties
dark purple to dark red-brown crystalline powder
Uses
DR19 can be used as red side groups in an NLO polyester for potential application in optical switching devices. It can also be bonded with polyurethane to form stable films, which may be used in the fabrication of analog systems.
Preparation
4-Nitrobenzenamine diazo, and N,N-dihydroxyethylaniline?coupling.
General Description
Disperse Red 19 (DR19) is widely used as a non-linear optical (NLO) dye with two hydroxyl (OH) groups, which can covalently connect with the base polymer. It can be linked as a side chain group that provides thermal and photo stability to the polymeric unit.
Properties and Applications
Yellow?red .red powder. Soluble in ethanol, acetone and benzene. The strong sulfuric acid for yellow, diluted for brown; In strong hydrochloric acid for red, and then into a brown. Used for polyester, vinegar fiber, three vinegar fiber, polyamide, acrylic and their blended fabric dyeing, also used for sheep and plastic shading, hue for yellow light red.
| Standard | Ironing Fastness | Light Fastness | Persperation Fastness | Washing Fastness | |||
| Fading | Stain | Fading | Stain | Fading | Stain | ||
| ISO | 4 | 4 | 5 | 5 | 4-5 | 5 | |
DISPERSE RED 19 Preparation Products And Raw materials
DISPERSE RED 19 Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Henan Aochuang Chemical Co.,Ltd. | +86-0371-63689365 +8618638391208 | sales@aochuangchem.com | China | 9425 | 58 |
| Aladdin Scientific | +1-833-552-7181 | sales@aladdinsci.com | United States | 57511 | 58 |
| Shanghai Aladdin Bio-Chem Technology Co.,LTD | 18521735133 18521732826; | market@aladdin-e.com | China | 25014 | 65 |
| Sigma-Aldrich | 021-61415566 800-8193336 | orderCN@merckgroup.com | China | 51471 | 80 |
| Shandong Ono Chemical Co., Ltd. | 0539-6362799 20） | China | 10007 | 58 | |
| Energy Chemical | 021-58432009 400-005-6266 | marketing@energy-chemical.com | China | 44941 | 58 |
| Shanghai Maclean Biochemical Technology Co., LTD | 021-50706066 15221275939 | shenlinxing@macklin.cn | China | 29803 | 58 |