| Customization: | Available |
|---|---|
| CAS No.: | 85-85-8 |
| Formula: | C15h11n3o |
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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.
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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.
General description
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-(2-Pyridylazo)-2-naphthol |
| CAS: | 85-85-8 |
| MF: | C15H11N3O |
| MW: | 249.27 |
| EINECS: | 201-637-9 |
| Product Categories: | Pyridylazo Compounds;Analytical Chemistry;Azo Compounds;Chelating Reagents;Naphthylazo Compounds;Intermediates |
| Mol File: | 85-85-8.mol |
| Melting point | 138-141 °C (lit.) |
| Boiling point | 392.37°C (rough estimate) |
| density | 1.1469 (rough estimate) |
| refractive index | 1.5700 (estimate) |
| storage temp. | Store at +5°C to +30°C. |
| pka | 8.86±0.50(Predicted) |
| form | Powder/Solid |
| color | green to red, upon chelation with metal |
| Water Solubility | Insoluble |
| BRN | 206390 |
| Stability: | Stable. Incompatible with strong oxidizing agents, strong bases. |
| CAS DataBase Reference | 85-85-8(CAS DataBase Reference) |
| NIST Chemistry Reference | 2-Naphthalenol, 1-(2-pyridinylazo)-(85-85-8) |
| EPA Substance Registry System | 2-Naphthalenol, 1-(2-pyridinylazo)- (85-85-8) |
| Hazard Codes | Xi |
| Risk Statements | 36/37/38 |
| Safety Statements | 26-36-37/39 |
| WGK Germany | 3 |
| TSCA | Yes |
| HS Code | 29333999 |
| Uses | 1-(2-Pyridylazo)-2-naphthol is an indicator of transition metals. 1-(2-Pyridylazo)-2-naphthol is an indicator in complexometry and a reagent for the extraction and spectrophotometric determination of many transition metals. Dyes and metabolites. |
| Chemical Properties | orange crystals |
| Uses | 1-(2-Pyridylazo)-2-naphthol is an indicator of transition metals. 1-(2-Pyridylazo)-2-naphthol is an indicator in complexometry and a reagent for the extraction and spectrophotometric determination of many transition metals. Dyes and metabolites. |
| Definition | ChEBI: 1-(2-pyridin-2-yldiazenyl)-2-naphthol is a member of naphthols. |
| General Description | 1-(2-Pyridylazo)-2-naphthol (PAN), an orange colored dye, is commonly used as an acid-base indicator. It can form chelates with metal ions, which makes it a valuable indicator in complexometric titrations. PAN is also a spectrophotometric reagent, which can extract metal chelates into an organic solvent. |
| Agricultural Uses | 1-(2-Pyridylazo)-2-naphthol is a hard stratum of strongly compacted soil caused by continual plowing to the same depth of hardened soil which has high clay content. The precipitated iron and silicates cement the soil particles and form pans. 1-(2-Pyridylazo)-2-naphthol often impede drainage and root growth. It can be broken up using a subsoiler . |
| Purification Methods | Purify PAN by repeated crystallisation from EtOH or MeOH. It can also be purified by sublimation under vacuum. Purity can be checked by TLC using a mixed solvent (pet ether/Et2O/EtOH; 10:10:1) on a silica gel plate. It has pK1 1.9 and pK2 12.2 in 20% aqueous ethoxyethanol. It chelates with copper [Pease & Williams Anal Chem 31 1046 1959]. [Beilstein 22 I 694, 22 III/IV 7073, 22/4 V 618.] |
| 1-(2-Pyridylazo)-2-naphthol Preparation Products And Raw materials |
| Raw materials | Carbon dioxide-->Sodium cyanide-->Cyclohexane-->2-Aminopyridine-->Ethyl nitrite-->3-(2,2-Dichlorovinyl)-2,2-dimethylcyclopropanecarbonyl chloride |
| Preparation Products | CARAMEL-->polyaniline composite film |
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