diaminostilbenedisulfonicacid
4,4'-Diamino-2,2'-stilbenedisulfonic acid
CAS: 81-11-8
Molecular Formula: C14H14N2O6S2
diaminostilbenedisulfonicacid - Names and Identifiers
| Name | 4,4'-Diamino-2,2'-stilbenedisulfonic acid |
| Synonyms | diaminostilbenedisulfonicacid 4,4-Diamino-2,2-stilbenedisulfonic acid 4,4'-Diamino-2,2'-stilbenedisulfonic acid 4,4-Diaminodiphenylethylene-2,2-disulfonic acid 4,4'-Diaminodiphenylethylene-2,2'-disulfonic acid |
| CAS | 81-11-8 |
| EINECS | 201-325-2 |
| InChI | InChI=1/C14H14N2O6S2/c15-11-5-3-9(13(7-11)23(17,18)19)1-2-10-4-6-12(16)8-14(10)24(20,21)22/h1-8H,15-16H2,(H,17,18,19)(H,20,21,22) |
diaminostilbenedisulfonicacid - Physico-chemical Properties
| Molecular Formula | C14H14N2O6S2 |
| Molar Mass | 370.40 |
| Density | 1.662g/cm3 |
| Melting Point | >325℃ |
| Water Solubility | <0.1 g/100 mL at 23℃ |
| Appearance | Form Crystalline Powder, color cream to yellow-brown |
| pKa | -1.58±0.50(Predicted) |
| Storage Condition | Keep in dark place,Inert atmosphere,Room temperature |
| Stability | Stable. Combustible. Incompatible with iron, strong oxidizing agents. |
| Refractive Index | 1.726 |
| MDL | MFCD00024946 |
| Physical and Chemical Properties | Melting Point:>325 water-soluble:<0.1g/100 mL at 23 C Appearance: yellowish, fine needle-like
|
| Use | For the production of fluorescent whitening agents, direct Frozen Yellow G and direct yellow R, and used as pesticides |
diaminostilbenedisulfonicacid - Risk and Safety
| Hazard Symbols | C - Corrosive |
| Risk Codes | R34 - Causes burns |
| Safety Description | S22 - Do not breathe dust. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) |
| UN IDs | UN 2583 |
| RTECS | WJ6603000 |
| TSCA | Yes |
| HS Code | 29215900 |
diaminostilbenedisulfonicacid - Upstream Downstream Industry
diaminostilbenedisulfonicacid - Use
Open Data Verified Data
mainly used in the manufacture of fluorescent whitening agent, direct Frozen Yellow G, direct yellow R, sun-resistant orange F3 G and insect repellent.
Last Update：2022-01-01 10:56:05
diaminostilbenedisulfonicacid - Safety
Open Data Verified Data
- toxic, irritating to the skin. Should Avoid ingestion, avoid direct contact with the human body. Operators should wear labor protection equipment.
- the container is packed in a plastic bag lined with a barrel or an iron drum. 50kg per barrel. Storage in a cool, ventilated warehouse, sealed storage. Storage period of half a year. According to the provisions of the storage and transportation of toxic chemicals.
Last Update：2022-01-01 10:56:06
diaminostilbenedisulfonicacid - Nature
| Merck | 14,595 |
| BRN | 629516 |
| EPA chemical information | Amsonic acid (81-11-8) |
Last Update：2024-04-10 22:29:15
diaminostilbenedisulfonicacid - Production method
it is formed by sulfonation of p-nitrotoluene to p-nitrotoluene o-sulfonic acid, then catalytic oxidation to 4,4 '-dinitrostilbene disulfonic acid, and then reduction.
Last Update：2024-04-10 22:29:15
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View History
Raw Materials for diaminostilbenedisulfonicacid
Downstream Products for diaminostilbenedisulfonicacid
Direct Yellow 12
fluorescent whitening agent PRS
Fluorescent Brightener VBU
FLUORESCENT BRIGHTENER 28
Reactive Yellow 179
Direct Blending Brilliant Red D-5BL
Reactive Red KD-8B
Reactive Orange KE-2G
Direct Red 227
fluorescent whitening agent PRS
Fluorescent Brightener VBU
FLUORESCENT BRIGHTENER 28
Reactive Yellow 179
Direct Blending Brilliant Red D-5BL
Reactive Red KD-8B
Reactive Orange KE-2G
Direct Red 227