ChemicalBook >> CAS DataBase List >>Pyrocatechol Violet
Pyrocatechol Violet
- CAS No.
- 115-41-3
- Chemical Name:
- Pyrocatechol Violet
- Synonyms
- CATECHOL VIOLET;Catechol vloiet;PyrocatecholViole;PYROCATECHOL VIOLET;PyrocatecholVioletGr;Catecholsulfonphthalein;CATECHOLSULFONAPHTHALEIN;PYROCATECHOLSULFONPHTHALEIN;PYROCATECHOLSULFONEPHTHALEIN;PYROCATECHOL SULPHONPHTHALEIN
- CBNumber:
- CB5423604
- Molecular Formula:
- C19H14O7S
- Molecular Weight:
- 386.38
- MDL Number:
- MFCD00005868
- MOL File:
- 115-41-3.mol
| Melting point | 185 °C (dec.)(lit.) |
|---|---|
| Boiling point | 659.5±55.0 °C(Predicted) |
| Density | 1.632±0.06 g/cm3(Predicted) |
| storage temp. | -20°C Freezer, Under inert atmosphere |
| solubility | H2O: 1 mg/mL, clear, red |
| pka | 7.21±0.10(Predicted) |
| form | Metallic or Crystalline Powder |
| color | Dark red-brown |
| PH Range | 6.0(YELLOW)-7.0(PURPLE)-9.0(PURPLISH RED) |
| Water Solubility | Soluble in water, ethylene glycol, monomethyl ether and ethanol. |
| BRN | 353938 |
| Stability | Stable. Incompatible with strong oxidizing agents. |
| CAS DataBase Reference | 115-41-3(CAS DataBase Reference) |
| EPA Substance Registry System | 1,2-Benzenediol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis- (115-41-3) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|---|---|
| Hazard statements | H315-H319-H335 |
| Precautionary statements | P261-P280a-P304+P340-P305+P351+P338-P405-P501a |
| Risk Statements | 36/37/38 |
| Safety Statements | 24/25 |
| WGK Germany | 3 |
| TSCA | Yes |
| HS Code | 32041900 |
Pyrocatechol Violet price More Price(21)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | P7884 | Pyrocatechol Violet suitable for indicator | 115-41-3 | 5g | $75.5 | 2022-05-15 | Buy |
| Sigma-Aldrich | P7884 | Pyrocatechol Violet suitable for indicator | 115-41-3 | 10g | $133 | 2022-05-15 | Buy |
| TCI Chemical | P0568 | Pyrocatechol Violet | 115-41-3 | 1g | $23 | 2022-04-27 | Buy |
| TCI Chemical | P0568 | Pyrocatechol Violet | 115-41-3 | 5g | $57 | 2022-04-27 | Buy |
| Alfa Aesar | B23513 | Catechol Violet | 115-41-3 | 5g | $49.7 | 2021-12-16 | Buy |
Pyrocatechol Violet Chemical Properties,Uses,Production
Chemical Properties
greenish yellow powder
Uses
A complexometric indicator.
Uses
Pyrocatechol Violet is a complexometric indicator dye. This phthalein dye chelates metals to form blue to blue-violet complexs. It is also a pH indicator with a transition interval from 0 - 8 (red to violet). It is known to be unstable when alkaline. The stability is improved at a neutral pH. When the pH is between 2-7 the color may be yellow. Dyes and metabolites.
Purification Methods
It is recrystallised from glacial acetic acid. It is very hygroscopic and is an indicator standard for metal complex titrations. [Mustafin et al. Zh Anal Khim 22 1808 1967, Beilstein 19/3 V 703.]
Pyrocatechol Violet Preparation Products And Raw materials
Global( 219)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| career henan chemical co | +86-0371-86658258 | sales@coreychem.com | China | 29960 | 58 |
| SHANDONG ZHI SHANG CHEMICAL CO.LTD | +86 18953170293 | sales@sdzschem.com | CHINA | 2940 | 58 |
| Chongqing Chemdad Co., Ltd | +8613650506873 | sales@chemdad.com | CHINA | 37442 | 58 |
| Hefei TNJ Chemical Industry Co.,Ltd. | 0551-65418671 | sales@tnjchem.com | CHINA | 34618 | 58 |
| ShenZhen Ipure Biology import and export company co.,ltd | +86-18071025641 +86-18071025641 | eric@ipurechemical.com | China | 13337 | 58 |
| Dayang Chem (Hangzhou) Co.,Ltd. | 571-88938639 +8617705817739 | info@dycnchem.com | CHINA | 52932 | 58 |
| Wuhan KEMI-WORKS Chemical Co., Ltd. | sales@kemiworks.com | China | 700 | 58 | |
| CD Chemical Group Limited | +86-13651442114 +86-13651442114 | info@codchem.com | China | 20376 | 58 |
| LEAP CHEM CO., LTD. | +86-852-30606658 | market18@leapchem.com | China | 24790 | 58 |
| Nanjing Duly Biotech Co.,Ltd | +86-025-84699383-8005 +86-18013301590 | melody@njduly.com | China | 996 | 58 |
View Lastest Price from Pyrocatechol Violet manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2019-07-06 | Pyrocatechol Violet
115-41-3
|
US $1.00 / KG | 1G | 99% | 100KG | Career Henan Chemical Co |
-
- Pyrocatechol Violet
115-41-3
- US $1.00 / KG
- 99%
- Career Henan Chemical Co
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115-41-3
C19H14O7S
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