2,2'-Dihydroxyazobenzene
- CAS No.
- 2050-14-8
- Chemical Name:
- 2,2'-Dihydroxyazobenzene
- Synonyms
- DHAB;SKL230;2,2'-Azophenol;2,2'-AZODIPHENOL;2,2’-azobis-pheno;2,2'-azobisphenol;2,2'-Azobenzenediol;2,2'-Azodiphenol,99%;Azobenzene-2,2'-diol;2,2'-Azodiphenol DHAB
- CBNumber:
- CB8276289
- Molecular Formula:
- C12H10N2O2
- Molecular Weight:
- 214.22
- MDL Number:
- MFCD00002182
- MOL File:
- 2050-14-8.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Melting point | 173-175 °C(lit.) |
|---|---|
| Boiling point | 354.35°C (rough estimate) |
| Density | 1.2042 (rough estimate) |
| refractive index | 1.6660 (estimate) |
| storage temp. | 2-8°C, stored under nitrogen |
| pka | 8.28±0.30(Predicted) |
| form | powder to crystal |
| color | Light yellow to Amber to Dark green |
| InChI | 1S/C12H10N2O2/c15-11-7-3-1-5-9(11)13-14-10-6-2-4-8-12(10)16/h1-8,15-16H/b14-13+ |
| InChIKey | JFEVWPNAOCPRHQ-BUHFOSPRSA-N |
| SMILES | Oc1ccccc1\N=N\c2ccccc2O |
| CAS DataBase Reference | 2050-14-8(CAS DataBase Reference) |
| EPA Substance Registry System | Phenol, 2,2'-azobis- (2050-14-8) |
| UNSPSC Code | 12352100 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
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|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319-H335 | |||||||||
| Precautionary statements | P261-P264-P271-P280-P302+P352-P305+P351+P338 | |||||||||
| target organs | Respiratory system | |||||||||
| PPE | dust mask type N95 (US), Eyeshields, Gloves | |||||||||
| Hazard Codes | Xi | |||||||||
| Risk Statements | 36/37/38 | |||||||||
| Safety Statements | 26-36/37/39 | |||||||||
| WGK Germany | 3 | |||||||||
| TSCA | TSCA listed | |||||||||
| HS Code | 2927.00.5000 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| Hazard Classifications | Eye Irrit. 2 Skin Irrit. 2 STOT SE 3 |
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| NFPA 704 |
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2,2'-Dihydroxyazobenzene price More Price(17)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 301787 | 2,2′-Dihydroxyazobenzene 97% | 2050-14-8 | 1g | $228 | 2026-04-30 | Buy |
| TCI Chemical | A5005 | 2,2'-Dihydroxyazobenzene [Spectrophotometric and fluorimetric reagent for Al, Mg and other metals] >98.0%(HPLC)(T) | 2050-14-8 | 1g | $98 | 2026-04-30 | Buy |
| TCI Chemical | A5005 | 2,2'-Dihydroxyazobenzene [Spectrophotometric and fluorimetric reagent for Al, Mg and other metals] >98.0%(HPLC)(T) | 2050-14-8 | 5g | $414 | 2026-04-30 | Buy |
| Activate Scientific | AS149479 | 2,2-Dihydroxyazobenzene 95% | 2050-14-8 | 1g | $105 | 2026-06-04 | Buy |
| Activate Scientific | AS149479 | 2,2-Dihydroxyazobenzene 95% | 2050-14-8 | 5g | $320 | 2026-06-04 | Buy |
2,2'-Dihydroxyazobenzene Chemical Properties, Uses, Production
Preparation
In a 50 mL flask, 1 g of p-nitrophenol and 2 g of lead powder were added and dissolved in 10 mL of methanol. 4 L of triethylamine carboxylate was added with stirring, and nitrogen was bubbled through. The reaction was carried out at room temperature, and the solution quickly turned brownish-red. The reaction was monitored by TLC for 2 hours, after which the reaction was stopped. The reaction mixture was filtered to remove insoluble matter, and the combined solution was washed with 20 mL of methanol. The mixture was concentrated under reduced pressure to remove most of the solvent. The residue was washed successively with diethyl ether, saturated brine, and water. The organic layer was separated, and the aqueous layer was extracted with acetyl. The organic layers were combined and dried overnight with anhydrous magnesium sulfate. After filtering to remove magnesium sulfate, acetaldehyde was evaporated under reduced pressure using a rotary evaporator. The residue was poured onto a large petri dish for volatilization, precipitating a dark red product. Benzene was recrystallized. The product was dried under vacuum at 50 °C to obtain 0.63 g of product, yield 82%, mp 215-216 °C.
2,2'-Dihydroxyazobenzene was prepared by reduction reaction using p-nitrophenol as a raw material, triethylamine formate and lead as reducing agents, and methanol as a solvent. The optimal reaction conditions were: reaction time 2.5 hours, lead dosage 12.07 mmol, triethylamine formate dosage 4 g, and a conversion rate of 82%.Uses
2,2′-Dihydroxyazobenzene was used as complexing reagent in determination of aluminum in human serum by ion-pair reversed-phase partition HPLC.
General Description
2,2′-Dihydroxyazobenzene is a small molecule inhibitor of ADP ribosyl cyclase and it attenuates angiotensin (Ang) II-induced hypertrophic responses. 2,2′-Dihydroxyazobenzene is formed during the oxidation of diclofenac by myeloperoxidase/hydrogen peroxide.
2,2'-Dihydroxyazobenzene Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 4006356688 18621169109 | market03@meryer.com | China | 40202 | 62 |
| TCI (Shanghai) Development Co., Ltd. | 021-67121386 | Sales-CN@TCIchemicals.com | China | 24512 | 81 |
| Beijing HwrkChemical Technology Co., Ltd | 89508211 18501085097 | sales.bj@hwrkchemical.com | China | 9407 | 55 |
| Energy Chemical | 400-0056266 | sales8178@energy-chemical.com | China | 44850 | 61 |
| Shanghai Hanhong Scientific Co.,Ltd. | 021-54306202 13764082696 | info@hanhongsci.com | China | 42917 | 64 |
| Shandong Xiya Chemical Co., Ltd | 13355009207 13355009207 | 3007715519@qq.com | China | 18722 | 57 |
| Sichuan Kulinan Technology Co., Ltd | 400-1166-196 18981987031 | cdhxsj@163.com | China | 11674 | 57 |
| Tianjin heowns Biochemical Technology Co., Ltd. | 400 638 7771 | sales@heowns.com | China | 14412 | 57 |
| Spectrum Chemical Manufacturing Corp. | 021-021-021-67601398-809-809-809 15221380277 | marketing_china@spectrumchemical.com | China | 9643 | 60 |
View Latest Price from 2,2'-Dihydroxyazobenzene manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2020-03-06 | 2,2'-DIHYDROXYAZOBENZENE
2050-14-8
|
$1.00 | 1KG | 97%-99.9% | 200kg | Career Henan Chemical Co |
-
- 2,2'-DIHYDROXYAZOBENZENE
2050-14-8
- $1.00
- 97%-99.9%
- Career Henan Chemical Co
