Basic information
- Name:
2-Amino-5-chloropyridine
- CAS No.:
1072-98-6
- Molecular Structure:
- Formula:
- C5H5ClN2
- Molecular Weight:
- 128.56
- Synonyms:
- AI3-52448;2-Pyridinamine, 5-chloro-;5-Chloro-2-pyridylamine;
- EINECS:
- 214-020-4
- Density:
- 1.326 g/cm3
- Melting Point:
- 134-138 °C
- Boiling Point:
- 257.8 °C at 760 mmHg
- Flash Point:
- 94.7 °C
- Solubility:
- 1 g/L (20 °C) in water
- Appearance:
- beige to beige-brown crystalline powder
- Hazard Symbols:
Xn,
Xi- Risk Codes:
- 22-36/37/38
- Safety Description:
- 22-24/25-37/39-26-36 Details
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Specification
The IUPAC name of 2-Amino-5-Chloropyridine is 5-chloropyridin-2-amine. With the CAS registry number 1072-98-6, it is also named as 2-Pyridinamine, 5-chloro-. The product's categories are Nitrogen Cyclic Compounds; Amines; Bromides; Pyridines; Pyridines, Pyrimidines, Purines and Pteredines; Pyridines Derivates; Chloropyridines; Halopyridines; Heterocyclic Building Blocks. It is beige to beige-brown crystalline powder which is stable under normal temperature and pressure. Additionally, this chemical should be sealed in the container and stored in the cool and dry place.
The other characteristics of this product can be summarized as: (1)ACD/LogP: 1.69; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 1.62; (4)ACD/LogD (pH 7.4): 1.68; (5)ACD/BCF (pH 5.5): 9.76; (6)ACD/BCF (pH 7.4): 11.2; (7)ACD/KOC (pH 5.5): 170.92; (8)ACD/KOC (pH 7.4): 196.14; (9)#H bond acceptors: 2; (10)#H bond donors: 2; (11)#Freely Rotating Bonds: 0; (12)Index of Refraction: 1.607; (13)Molar Refractivity: 33.47 cm3; (14)Molar Volume: 96.8 cm3; (15)Polarizability: 13.27×10-24 cm3; (16)Surface Tension: 54.3 dyne/cm; (17)Enthalpy of Vaporization: 49.54 kJ/mol; (18)Vapour Pressure: 0.0142 mmHg at 25°C; (19)Tautomer Count: 2; (20)Exact Mass: 128.014126; (21)MonoIsotopic Mass: 128.014126; (22)Topological Polar Surface Area: 38.9; (23)Heavy Atom Count: 8; (24)Complexity: 76.8.
Preparation of 2-Amino-5-Chloropyridine: It can be obtained by 2,2-dimethyl-3-(5-chloropyrid-2-yl)-4-4H-1,3-benzoxazine. This reaction needs reagent conc. HCl by heating. The reaction time is 8 hours. The yield is 95%.
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Uses of 2-Amino-5-Chloropyridine: It is used to produce herbicide and drug Zopiclone. It also can be used in organic synthesis. For example: it can react with hexane-2,5-dione to get N-(5-chloro-2-pyridyl)-2,5-dimethylpyrrole. This reaction must react at temperature of 100 °C for 3 hours. The yield is 32%.
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When you are using this chemical, please be cautious about it as the following:
It is not only harmful if swallowed, but also irritating to eyes, respiratory system and skin. So people should not breathe dust and avoid contact with skin and eyes. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. If you want to contact this product, you must wear suitable protective clothing, gloves and eye/face protection.
People can use the following data to convert to the molecule structure.
1. SMILES:c1cc(ncc1Cl)N
2. InChI:InChI=1/C5H5ClN2/c6-4-1-2-5(7)8-3-4/h1-3H,(H2,7,8)
3. InChIKey:MAXBVGJEFDMHNV-UHFFFAOYAS
