2-Hydroxy-5-chloropyridine
5-Chloro-2-pyridinol
CAS: 4214-79-3
Molecular Formula: C5H4ClNO
2-Hydroxy-5-chloropyridine - Names and Identifiers
2-Hydroxy-5-chloropyridine - Physico-chemical Properties
| Molecular Formula | C5H4ClNO |
| Molar Mass | 129.54 |
| Density | 1.2309 (rough estimate) |
| Melting Point | 163-165°C(lit.) |
| Boling Point | 290.7±40.0 °C(Predicted) |
| Flash Point | 129.6°C |
| Vapor Presure | 0.00204mmHg at 25°C |
| Appearance | powder to crystal |
| Color | White to Orange to Green |
| BRN | 2020 |
| pKa | 9.96±0.10(Predicted) |
| Storage Condition | Sealed in dry,Room Temperature |
| Refractive Index | 1.4510 (estimate) |
| MDL | MFCD00006275 |
| Physical and Chemical Properties | White or light brown crystals, odorless and tasteless. The melting point is above 360 °c. Insoluble in most organic solvents and water, slightly soluble in strong alkali or acid solution. With metal oxides to form metal salts, the performance is very stable, can be stored for 3 years. Rat oral LD50 greater than 16 g/kg, chicken oral LD503.2g/kg. |
2-Hydroxy-5-chloropyridine - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. |
| WGK Germany | 3 |
| HS Code | 29337900 |
| Hazard Note | Irritant |
2-Hydroxy-5-chloropyridine - Nature
Open Data Verified Data
white or light yellow powder. Odorless. Melting point> 320 °c. Slightly soluble in 6mol/L hydrochloric acid or 1mol/L sodium hydroxide, methanol and ethanol-soluble, insoluble in water, benzene, acetone, ether.
Last Update：2024-01-02 23:10:35
2-Hydroxy-5-chloropyridine - Preparation Method
Open Data Verified Data
2, 6-methylpyridin-4-phenol was prepared by chlorination with chlorine in hydrochloric acid.
Last Update：2022-01-01 10:53:50
2-Hydroxy-5-chloropyridine - Use
Open Data Verified Data
when 125 × 10-6 and 250 × 10-6 were added to the feed, the weight gain rate of 15-day-old chickens was significantly increased after feeding for 10 to 15 days.
Last Update：2022-01-01 10:53:49
2-Hydroxy-5-chloropyridine - Safety
Open Data Verified Data
rat oral LD50 18g/kg. lkg, lOkg lined with plastic bags, external carton packaging.
Last Update：2022-01-01 10:53:50
2-Hydroxy-5-chloropyridine - Reference Information
| use | as an anticoccal drug, it can be used as feed for broilers and hens under 16 weeks of age. the maximum dosage is 125 g/t. it is forbidden during laying and the drug withdrawal period is 5 days. |
| production method | 2, 6-dimethylpyridine-4-phenol is chlorinated in hydrochloric acid to produce |
Last Update：2024-04-10 22:29:15
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