3,3'-Dihydroxybenzidine
- CAS No.
- 2373-98-0
- Chemical Name:
- 3,3'-Dihydroxybenzidine
- Synonyms
- HAB;2-amino-5-(4-amino-3-hydroxyphenyl)phenol;p-HAB;Dihydroxybenzidine;3,3’-dioxybenzidine;BENZIDINE-3,3'-DIOL;3,3'-Dihydroxybenzid;3,3’-dwuoksybenzydyna;5,5'-Bi(2-aminophenol);3,3'-DIHYDROXYBENZIDINE
- CBNumber:
- CB6437723
- Molecular Formula:
- C12H12N2O2
- Molecular Weight:
- 216.24
- MOL File:
- 2373-98-0.mol
- MSDS File:
- SDS
- Modify Date:
- 2024/5/23 10:11:31
| Melting point | 292 °C |
|---|---|
| Boiling point | 356.65°C (rough estimate) |
| Density | 1.1710 (rough estimate) |
| refractive index | 1.6660 (estimate) |
| storage temp. | Keep in dark place,Inert atmosphere,Room temperature |
| Water Solubility | Practically insoluble in water |
| form | powder to crystal |
| pka | 9.15±0.10(Predicted) |
| color | White to Gray to Brown |
| CAS DataBase Reference | 2373-98-0(CAS DataBase Reference) |
| EPA Substance Registry System | 3,3-Dihydroxybenzidine (2373-98-0) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS07,GHS08 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319-H351-H373 | |||||||||
| Precautionary statements | P201-P202-P260-P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313-P308+P313-P405-P501 | |||||||||
| Hazard Codes | T | |||||||||
| Risk Statements | 40-45-48-36/37/38 | |||||||||
| Safety Statements | 22-53-45-36/37/39-26-6 | |||||||||
| RTECS | DV4900000 | |||||||||
| HS Code | 29222990 | |||||||||
| NFPA 704 |
|
3,3'-Dihydroxybenzidine price More Price(4)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| TCI Chemicals (India) | D2312 | 3,3'-Dihydroxybenzidine | 2373-98-0 | 5G | ₹9400 | 2022-05-26 | Buy |
| TCI Chemicals (India) | D2312 | 3,3'-Dihydroxybenzidine | 2373-98-0 | 25G | ₹26800 | 2022-05-26 | Buy |
| ottokemi | D 6224 | 4,4′-Diamino[1,1′-biphenyl]-3,3′-diol, 99% | 2373-98-0 | 5gm | ₹8496 | 2022-05-26 | Buy |
| ottokemi | D 6224 | 4,4′-Diamino[1,1′-biphenyl]-3,3′-diol, 99% | 2373-98-0 | 25gm | ₹35649 | 2022-05-26 | Buy |
3,3'-Dihydroxybenzidine Chemical Properties,Uses,Production
Description
3,3'-Dihydroxybenzidine is an organic synthesis intermediate used as a raw material for the synthesis of fire-resistant polymers (polyhydroxyamino acids).3,3'-Dihydroxybenzidine is also used in the preparation of hydroxyl-containing polyimides, all of which are synthesised to be soluble in NMP when heated. 3,3'-Dihydroxybenzidine is used in the synthesis of polyimides with hydroxyl groups. The glass transition temperature (Tg) of polyimides ranges from 336-360°C, independent of the structure of the tetracarboxylic dianhydride. The storage modulus of some polyimides does not decrease at elevated temperatures. All polyimides thermally transform into polybenzoxazole when heated to 500°C for 1 hour under vacuum.
Chemical Properties
A pale brown solid
Uses
4,4'-diaminobiphenyl-3,3'-diol is used as organic intermediates.
General Description
Colorless crystals.
Air & Water Reactions
Keep well closed. Protect from air and light.
Reactivity Profile
3,3'-Dihydroxybenzidine is an aminoalcohol. Amines are chemical bases. They neutralize acids to form salts plus water. These acid-base reactions are exothermic. The amount of heat that is evolved per mole of amine in a neutralization is largely independent of the strength of the amine as a base. Amines may be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen is generated by amines in combination with strong reducing agents, such as hydrides.
Health Hazard
ACUTE/CHRONIC HAZARDS: When heated to decomposition 3,3'-Dihydroxybenzidine emits toxic fumes.
Safety Profile
Suspected carcinogen with experimental carcinogenic, neoplastigenic, and tumorigenic data. Mutation data reported. When heated to decomposition it emits toxic fumes of Nox
3,3'-Dihydroxybenzidine Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| CLEARSYNTH LABS LTD. | +91-22-45045900 | Hyderabad, India | 6351 | 58 | Inquiry |
| A.J Chemicals | 91-9810153283 | New Delhi, India | 6124 | 58 | Inquiry |
| TCI Chemicals (India) Pvt. Ltd. | 1800 425 7889 | New Delhi, India | 6778 | 58 | Inquiry |
| Otto Chemie Pvt. Ltd. | +91 9820041841 | Mumbai, India | 5873 | 58 | Inquiry |
| Clearsynth Labs | 91-22-45045900 | Maharashtra, India | 3889 | 58 | Inquiry |
| Shanghai Daeyeon Chemicals Co., Ltd | 021-64478606 +8615900664856 | China | 2062 | 58 | Inquiry |
| Heynova (Shanghai) New Material Technology CO., Ltd | +86-17821320848; +8617821320848 | China | 431 | 58 | Inquiry |
| Henan Fengda Chemical Co., Ltd | +86-371-86557731 +86-13613820652 | China | 20308 | 58 | Inquiry |
| Hebei Zhuanglai Chemical Trading Co.,Ltd | +8613343047651 | China | 3002 | 58 | Inquiry |
| Springchem New Material Technology Co.,Limited | +86-021-62885108 +8613917661608 | China | 2068 | 57 | Inquiry |
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