ChemicalBook >> CAS DataBase List >>Cresol Red
Cresol Red
- CAS No.
- 1733-12-6
- Chemical Name:
- Cresol Red
- Synonyms
- CR;BROMCRESOL PURPLE;CRGF;NSC 7224;cresolre;BETZ 0419;Cresol Red;Cvesol red;TDGF1 human;O-CRESOL RED
- CBNumber:
- CB4376563
- Molecular Formula:
- C21H18O5S
- Molecular Weight:
- 382.43
- MDL Number:
- MFCD00005878
- MOL File:
- 1733-12-6.mol
- MSDS File:
- SDS
Last updated:2024-04-16 18:29:06
| Melting point | 290 °C |
|---|---|
| Boiling point | 479.59°C (rough estimate) |
| Density | 0.998 g/cm3 |
| refractive index | 1.5300 (estimate) |
| storage temp. | Store at +5°C to +30°C. |
| solubility | Solubility Sparingly soluble in water; soluble in ethanol |
| form | Powder |
| pka | 1.0(at 25℃) |
| color | Dark green or brown-red |
| PH Range | 7.2(YELLOW)--8.8(PURPLISH RED) |
| PH | 7.2～8.8 |
| Water Solubility | soluble |
| λmax | 570nm, 367nm, 432nm |
| Merck | 14,2578 |
| BRN | 343399 |
| Major Application | Display device, optical sensors, combustion gas detection system, inks, correction fluid, diapers, toothpaste, identifying fresh and stale rice, food storage, determine glucose in dialysis solution, monitor metabolic activity of microorganisms, detect bacterialinfection, psychoactive drugs, dental impression material |
| InChIKey | ASMGMVUGPNODGX-UHFFFAOYSA-N |
| FDA UNII | 839K2R4B8K |
| EPA Substance Registry System | Cresol Red (1733-12-6) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319-H335 | |||||||||
| Precautionary statements | P261-P280a-P304+P340-P305+P351+P338-P405-P501a | |||||||||
| Hazard Codes | Xi,Xn,F | |||||||||
| Risk Statements | 36/37/38-20/21/22-11 | |||||||||
| Safety Statements | 24/25-36-26-16 | |||||||||
| RIDADR | UN1170 - class 3 - PG 3 - Ethanol, solution | |||||||||
| WGK Germany | 3 | |||||||||
| TSCA | Yes | |||||||||
| HS Code | 29349990 | |||||||||
| Toxicity | A potent lacrimator which is chemically stable and retains its irritancy in water and so can be used in liquid jets in personnel control. In addition to lacrimation, it causes eye pain, blepharospasm, eyelid swelling, irritation of the conjunctiva, a rise in intraocular pressure, and erythema of the skin. Because it can be used in water, its use is less affected by changes in climatic conditions. It is a more potent lacrimator than CS but it is less potent in lethality than CS. | |||||||||
| NFPA 704 |
|
Cresol Red price More Price(35)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 114472 | Cresol red indicator grade, Dye content 95% | 1733-12-6 | 5g | $24.3 | 2024-03-01 | Buy |
| Sigma-Aldrich | 114472 | Cresol red indicator grade, Dye content 95% | 1733-12-6 | 25g | $83.3 | 2024-03-01 | Buy |
| Sigma-Aldrich | 1.05225 | Cresol red indicatorReag.PhEur | 1733-12-6 | 5G | $208 | 2024-03-01 | Buy |
| Sigma-Aldrich | 1.05225 | Cresol red indicatorReag.PhEur | 1733-12-6 | 25g | $520 | 2024-03-01 | Buy |
| TCI Chemical | C0406 | Cresol Red >98.0%(HPLC) | 1733-12-6 | 1g | $30 | 2024-03-01 | Buy |
Cresol Red Chemical Properties,Uses,Production
Chemical Properties
Dark green or brown-red powder
Uses
Acid-base indicator.
Uses
Cresol red is commonly used with lead acetate for the detection of urease after PAGE. It is also used as an indicator with the following transition intervals: pH 1.8 (orange) to pH 2.0 (yellow); pH 7.0 (yellow) to pH 8.8 (violet). Cresol Red is used as a tracking dye in DNA, RNA (agarose) and protein (polyacrylamide) electrophoresis. In agarose, Cresol Red runs with an apparent molecular size of approx. 125 bp DNA. Cresol Red does not inhibit Taq polymerase.
Definition
ChEBI: A member of the class of 2,1-benzoxathioles that is 2,1-benzoxathiole 1,1-dioxide in which both of the hydrogens at position 3 have been substituted by 4-hydroxy-5-methylphenyl groups.
Purification Methods
Crystallise it from glacial acetic acid. Dry it in air. Dissolve it in aqueous 5% NaHCO3 solution and precipitate it from a hot solution by dropwise addition of aqueous HCl. Repeat the procedure till the UVmax does not increase. [Beilstein 19 IV 1133.]
Cresol Red Preparation Products And Raw materials
Global( 384)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Hebei Mojin Biotechnology Co., Ltd | +8613288715578 | sales@hbmojin.com | China | 12456 | 58 |
| Henan Bao Enluo International TradeCo.，LTD | +86-17331933971 +86-17331933971 | deasea125996@gmail.com | China | 2503 | 58 |
| Henan Fengda Chemical Co., Ltd | +86-371-86557731 +86-13613820652 | info@fdachem.com | China | 7786 | 58 |
| hebei hongtan Biotechnology Co., Ltd | +86-86-1913198-3935 +8617331935328 | sales03@chemcn.cn | China | 951 | 58 |
| Shanghai Daken Advanced Materials Co.,Ltd | +86-371-66670886 | info@dakenam.com | China | 15928 | 58 |
| career henan chemical co | +86-0371-86658258 | sales@coreychem.com | China | 29914 | 58 |
| Hubei Jusheng Technology Co.,Ltd. | 18871490254 | linda@hubeijusheng.com | CHINA | 28180 | 58 |
| Shandong chuangyingchemical Co., Ltd. | 18853181302 | sale@chuangyingchem.com | CHINA | 5909 | 58 |
| Chongqing Chemdad Co., Ltd | +86-023-61398051 +8613650506873 | sales@chemdad.com | China | 39916 | 58 |
| Alchem Pharmtech,Inc. | 8485655694 | sales@alchempharmtech.com | United States | 63711 | 58 |
View Lastest Price from Cresol Red manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2024-04-22 | Cresol Red
1733-12-6
|
US $20.00 / kg | 1kg | 99.9% | 1000 | hebei hongtan Biotechnology Co., Ltd | |
 |
2024-04-16 | Cresol Red
1733-12-6
|
US $5.00-2.00 / kg | 1kg | 99% | g-kg-tons, free sample is available | Henan Fengda Chemical Co., Ltd | |
 |
2023-12-18 | Cresol Red
1733-12-6
|
US $0.00 / KG | 1KG | 99% | 50000KG/month | Hebei Mojin Biotechnology Co., Ltd |
-
- Cresol Red
1733-12-6
- US $20.00 / kg
- 99.9%
- hebei hongtan Biotechnology Co., Ltd
-
- Cresol Red
1733-12-6
- US $5.00-2.00 / kg
- 99%
- Henan Fengda Chemical Co., Ltd
-
- Cresol Red
1733-12-6
- US $0.00 / KG
- 99%
- Hebei Mojin Biotechnology Co., Ltd
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