| Customization: | Available |
|---|---|
| CAS No.: | 2303-01-7 |
| Formula: | C21h18o5s |
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Suppliers with verified business licenses
Hunan Yunbang Pharmaceutical Co., Ltd. (Yunbangpharm) located in Changsha High-tech Industrial Park, Hunan. It is a high-tech enterprise specializing in the research and development, production and sales of Pharmaceutical raw materials, Pharmaceutical intermediates(API) and Fine chemicals. Based in China, Yunbangpharm has been providing suitable solutions for many domestic,foreign pharmaceutical companies and traders. Excellent quality, good reputation and authentic price have won the praise of the majority of customers.
1:Can I get some samples before bulk order?
A: Most products provide free samples, but the shipping cost be paid by customers.
2: What's your MOQ?
A: We can have a discussion.
3: Which kind of payment terms do you accept?
A: PI will be sent first after confirmation of order,enclosed our bank information.Payment by T/T, Western Union,D/P, ETC.
4.How to place an order?
A: You can contact me through Trademanager, WhatsApp, Email and other contact methods, tell me the product and quantity you need, and then we will give you a quote.
5:How about your delivery time?
A: Generally, it will take 3 to 5 days after receiving your advance payment.
6:How do you treat quality complaint?
A: First of all, our quality control will reduce the quality problem to near zero. If there is a real quality problem caused by us, we will send you free goods for replacement or refund your loss.
1. 90days quality guarantee for exchange.
2. For each batch order extracts, we will attach a factory Inspection Report with the goods delivery , including the BatchNo/ Date/ Test index ects; also will keep the archived extracts to ensure received by customers are the same each time.
3. Our team of experienced professionals are available online 24 hours a day to answer any questions and provide guidance on product usage and maintenance.
| Product Name: | Cresol Purple |
| CAS: | 2303-01-7 |
| MF: | C21H18O5S |
| MW: | 382.43 |
| EINECS: | 218-960-6 |
| Product Categories: | Sulfonephthalein;Analytical Chemistry;Organics;Indicator (pH);pH Indicators |
| Mol File: | 2303-01-7.mol |
| Cresol Purple Chemical Properties |
| Melting point | >250°C |
| Boiling point | 577.5±50.0 °C(Predicted) |
| density | 1.404±0.06 g/cm3(Predicted) |
| storage temp. | room temp |
| solubility | Very slightly soluble in water, ethanol; soluble in me thanol |
| pka | 1.51, 8.32(at 25ºC) |
| form | Liquid |
| color | Dark green |
| PH Range | 1.2 (red) - 2.8 (yellow) and 7.4 (yellow) - 9.0 (purple) |
| Water Solubility | Soluble in water and sodium hydr-oxide solution. Slightly soluble in alcohol. |
| λmax | 579nm, 371nm |
| Merck | 14,2577 |
| BRN | 350314 |
| Stability: | Stable. Incompatible with strong oxidizing agents. |
| Major Application | Fuel cells, sensors, display device, falsification-proof security paper, inks, correction fluid, paints, detection of electrophilic gases, lubricants, cement products, packaging system, adhesive, cosmetics, food storage, determining glucose in dialysis solution, screening of cat diseases, detecting carbohydrates, oral hygiene products |
| EPA Substance Registry System | Phe-nol, 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene)bis[3-methyl- (2303-01-7) |
| Safety Information |
| Safety Statements | 24/25 |
| WGK Germany | WGK 2 water endangering |
| TSCA | Yes |
| HS Code | 2934 99 90 |
| Cresol Purple Usage And Synthesis |
| Chemical Properties | green crystalline powder |
| Uses | Acid-base indicator. |
| Uses | m-Cre sol Purple acts as a pH indicator dye. It plays an important role in spectrophotometric pH measurements. It operates in the pH ranges 1.2 - 2.8 (red to yellow) and 7.4 - 9.0 (yellow to violet). Further, it is employed to stain epithelial cells and proteins. |
| Biochem/physiol Actions | m-Cre sol purple is a pH indicator. It changes from red (pH 1.2) to yellow (2.8) and yellow (7.4) to purple (9.0). |
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