| Customization: | Available |
|---|---|
| CAS No.: | 538-62-5 |
| Formula: | C13h12n4o |
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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: | DIPHENYLCARBAZONE |
| Synonyms: | Diphenylcarbazone Compound with s-Diphenylcarbazide, Reagent;(E)-1,5-diphenylcarbazone;1-Phenyl-2-[hydroxy(phenylazo)methylene]hydrazine;PhenylazoforMic acid 2-phenylhydrazide, suitable for coloriMetric analysis 10GR;(contains Diphenylcarbazide);Diphenylcarbazone ;Diphenylcarbazone, for analysis;1,5-DIPHENYLCARBAZONE |
| CAS: | 538-62-5 |
| MF: | C13H12N4O |
| MW: | 240.26 |
| EINECS: | 208-698-0 |
| Product Categories: | Pharmaceutical Intermediates;Aromatic Hydrazides, Hydrazines, Hydrazones and Oximes |
| Mol File: | 538-62-5.mol |
| DIPHENYLCARBAZONE Chemical Properties |
| Melting point | 119-123 °C(lit.) |
| Boiling point | 382.98°C (rough estimate) |
| density | 1.19±0.1 g/cm3 (20 ºC 760 Torr) |
| refractive index | 1.6120 (estimate) |
| storage temp. | 2-8°C |
| solubility | DMSO (Slightly), Meth-anol (Slightly) |
| form | Powder |
| pka | 9.83±0.43(Predicted) |
| color | Orange |
| Water Solubility | Soluble in acet-one. Insoluble in water. |
| Merck | 14,3322 |
| CAS DataBase Reference | 538-62-5(CAS DataBase Reference) |
| EPA Substance Registry System | Diazenecarboxylic acid, phenyl-, 2-phenylhydrazide (538-62-5) |
| Safety Information |
| Risk Statements | 22-36/37/38 |
| Safety Statements | 22-24/25-36/37/39-26 |
| RIDADR | 1325 |
| WGK Germany | 3 |
| RTECS | LQ9420000 |
| F | 10-21 |
| TSCA | Yes |
| HS Code | 29280000 |
| DIPHENYLCARBAZONE Usage And Synthesis |
| Chemical Properties | orange powder |
| Uses | Indicator |
| Uses | As a sensitive reagent for Hg, with which it gives a blue color. |
| Uses | It is a reagent for mer-cury determination. |
| Purification Methods | It crystallises from EtOH (ca 5mL/g), and dry the orange-red needles at 50o. A commercial sample, nominally sym-diphenylcarbazone (m 154-156o) was a mixture of diphenylcarbazide and diphenylcarbazone. The former was removed by dissolving 5g of the crude material in 75mL of warm EtOH, then adding 25g Na2CO3 dissolved in 400mL of distilled water. The alkaline solution was cooled and extracted six times with 50mL portions of die-thyl ether (discarded). Diphenylcarbazone was then precipitated by acidifying the alkaline solution with 3M HN-O3 or glacial acetic acid. It was filtered off, air dried, and stored in the dark [Gerlach & Frazier Anal Chem 30 1142 1958]. Other impurities are phenylsemicarbazide and diphenylcarbodiazone. Impurities can be detected by chromatography [Willems et al. Anal Chim Acta 51 544 1970]. It is used for detection and estimation of Hg, Zn, Cd, Cr, Cu, Fe and Mo [Cheng et al. Handbook of Organic Analytical Reagents, Boca Baton 277 1982, Beilstein 16 H 24, 16 IV 17.] |
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