| Customization: | Available |
|---|---|
| CAS No.: | 140-22-7 |
| Formula: | C13h14n4o |
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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.
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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.
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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: | 1,5-Diphenylcarbazide |
| Synonyms: | 1,5-Diphenylcabohydrazide;1,5-diphenyl-carbohydrazid;1,5-Diphenylcarbohydrazine;2,2'-diphenylcarbazide;DIPHENYLCARBAZIDE;Diphenylcarbazide p.a.;1,5-Diphenylcarbazid;TIMTEC-BB SBB008713 |
| CAS: | 140-22-7 |
| MF: | C13H14N4O |
| MW: | 242.28 |
| EINECS: | 205-403-7 |
| Product Categories: | Phenylh-ydrazine;ACS Grade;Building Blocks;Carbonyl Compounds;Chemical Synthesis;Essential Chemicals;Hydrazides;Inorganic Salts;Organic Building Blocks;Research Essentials;Solutions and Reagents |
| Mol File: | 140-22-7.mol |
| 1,5-Diphenylcarbazide Chemical Properties |
| Melting point | 170-175 °C(lit.) |
| Boiling point | 385.1°C (rough estimate) |
| density | 1.31 g/cm3 |
| refractive index | 1.6120 (estimate) |
| storage temp. | 2-8°C |
| solubility | aqueous acet-one: passes test |
| pka | 9.98±0.43(Predicted) |
| form | Powder or Flakes |
| color | White to cream |
| Odor | Odorless |
| Water Solubility | Soluble in glacial acetic acid, alcohol and ace-tone. Slightly soluble in water. |
| Sensitive | Light Sensitive |
| Merck | 14,3321 |
| BRN | 752039 |
| Stability: | Stable. Light sensitive. Incompatible with strong oxidizing agents. |
| CAS DataBase Reference | 140-22-7(CAS DataBase Reference) |
| NIST Chemistry Reference | N'',n'''-diphenylcarbonohydrazide(140-22-7) |
| EPA Substance Registry System | Carbonic dihydrazide, 2,2'-diphenyl- (140-22-7) |
| Safety Information |
| Hazard Codes | Xi |
| Risk Statements | 36/37/38 |
| Safety Statements | 26-36 |
| WGK Germany | 3 |
| RTECS | FF2750000 |
| F | 8-10-23 |
| TSCA | Yes |
| HazardClass | IRRITANT |
| HS Code | 29280090 |
| 1,5-Diphenylcarbazide Usage And Synthesis |
| Chemical Properties | white crystals or powder |
| Uses | 1,5-Diphenylcarbazideis a carbazide derivative used in the colorimteric determination of chromium as well as in the detection of cad-mium, merc-ury, magnesium and aldehydes. |
| Uses | As indicator in titrating Fe; for the colorimetric determination of Cr, detection of Cd, Hg, Mg, aldehydes, em-etine. |
| Uses | 1,5-Diphenylcarbazide is used in the colorimetric determination of chromium, osmium as well as in the detection of cad-mium, merc-ury, magnesium, eme-tine and aldehydes. |
| Definition | ChEBI: Diphenylcarbazide is a member of phenylh-ydrazines. |
| General Description | 1,5-Diphenylcarbazide is a colorimetric reagent commonly employed in the determination of trace metals. |
| Purification Methods | A common impurity is phenyl-semicarbazide which can be removed by chromatography: ~8g in H2O is placed on a column (polyamide 6 powder, Macherey-Nagel-GmbH-Germany, washed several times with MeOH), eluted with H2O/MeOH/AcOH (1:3:0.04) at 7-8 drops/second, then eluted with the same solvent mixture but diluted 5 fold with H2O. The purification is followed by UV light at 280nm. The effluent is evaporated to dryness in vacuo at ~28o. [chromatography, IR & UV: Willems et al. Anal Chim Acta 51 544 1970]. Recrystallise it from EtOH by adding CCl4 to induce crystallisation, or AcOH to give a white crystalline powder which turns pink in air. It is air and light sensitive and should be stored in the dark under N2. [Beilstein 15 H 292, 15 IV 182.] |
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