Toluene diisocyanate manufacturer Knowledge 2-hydroxy-4-methylquinoline

2-hydroxy-4-methylquinoline

2-hydroxy-4-methylquinoline structural formula

Structural formula

Business number 069Q
Molecular formula C10H9NO
Molecular weight 159.18
label

4-Methyl-2(1H)-quinolone,

4-methyl-2-hydroxyquinoline,

4-methylquinolinone,

4-Methyl-2-quinolinol,

4-Methyl-2-quinolinol,

4-Methylcarbostyril

Numbering system

CAS number:607-66-9

MDL number:MFCD00006745

EINECS number:210-139-0

RTECS number:None

BRN number:118331

PubChem number:24895639

Physical property data

Physical property data:
1. Character: needle-shaped crystal

2. Melting point245


3. Boiling point>360, 2702.27kPa)


4. Solubility: Soluble in ethanol and hot water, Slightly soluble in cold water, ether, chloroform and benzene

Toxicological data

None

Ecological data

3. Ecological data:


1. Other harmful effects: This substance may be harmful to the environment and should be harmful to water bodies. Give special attention.

Molecular structure data


5. Molecular property data:


1 Molar refractive index:48.89


2 Molar volume (m3/mol):131.4


3 Isotonic specific volume (90.2K):357.9


4 Surface tension (dyne/cm):54.9


5, Polarizability (10-24cm3 ):19.38

Compute chemical data

1. Reference value for hydrophobic parameter calculation (XlogP): 1.2

2. Number of hydrogen bond donors: 1

3. Number of hydrogen bond acceptors: 1

4. Number of rotatable chemical bonds: 0

5. Number of tautomers: 2

6. Topological molecule polar surface area 29.1

7. Number of heavy atoms: 12

8. Surface charge: 0

9. Complexity: 232

10. Number of isotope atoms: 0

11. Determine the number of atomic stereocenters: 0

12. Uncertain number of atomic stereocenters: 0

13. Determine the number of chemical bond stereocenters: 0

14.NoThe number of stereocenters of certain chemical bonds: 0

15. The number of covalent bond units: 1

Properties and stability

1. Properties: Acicular crystal.



Storage method

Storage:


Seal the secret container and store it in a sealed main container in a cool place Dry position.

Synthesis method

2. Preparation method: obtained by cyclization of acetoacetanilide in the presence of sulfuric acid. Preheat concentrated sulfuric acid to 75, add acetoacetanilide in batches, and control the temperature to 70-75. After the addition is complete, raise the temperature to 95, response15minthen cool to65, pour the mixture into the water. After cooling, filter, wash the product with water and methanol, dry it with 95%The finished product is obtained by recrystallizing ethanol.

Purpose

3. Uses: Used as organic synthesis intermediates.

Resource:allhdi.com

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