Diazepam structural formula

Structural formula

Business number 04TY
Molecular formula C16H13ClN2O
Molecular weight 284.74


Ro 5-2807,







① Diazepam ② Diazepam (0405 requires application for export license),


Numbering system

CAS number:439-14-5

MDL number:MFCD00057323

EINECS number:207-122-5

RTECS number:DF1575000

BRN number:None

PubChem number:24893306

Physical property data

一 , physical property data

Traits :White or off-white crystalline powder

Density (g/mL,25/4): Not available

Relative Vapor density (g/mL, air=1)Not available

Melting point (ºC):125-126

Boiling point (ºC, normal pressure): Not available

Boiling point (ºC, 5.2kPa): Not available

Refraction Rate: Not available

Flash Point (ºC): 11

Optical rotation (º): Not available

Spontaneous combustion Point or ignition temperature (ºC): Not available

Steam Pressure (kPa, 25ºC): Not available

saturated Vapor pressure (kPa, 60ºC): Not available

Burn Heat (KJ/mol):Not available

Critical Temperature (ºC): Not available

Critical Pressure (KPa): Not available

oil and water Log value of the (octanol/water) partition coefficient:Not available

Explosion Upper limit (%, V/V): Not available

Explosion Lower limit (%, V/V): Not available

Dissolve Properties:Easily soluble in acetone, chloroform, petroleum ether, soluble in In ethanol, very slightly soluble in water

Toxicological data

Two , Toxicological data:

Acute Toxicity:Not available .

Ecological data

Three , Ecological data:

1 ,Other harmful effects: This substance may be harmful to the environment, and special treatment should be given to water bodies. Notice.

Molecular structure data

1 Molar refractive index:80.91

2 Molar volumem3/mol)225.8

3 Isotonic specific volume (90.2K):588.6

4 Surface tensiondyne/cm)46.1

5 Polarizability(10-24cm3)32.07

Compute chemical data

1. Reference value for hydrophobic parameter calculation (XlogP): None

2. Number of hydrogen bond donors: 0

3. Number of hydrogen bond acceptors: 2

4. Number of rotatable chemical bonds: 1

5. Number of tautomers: 2

6. Topological molecule polar surface area 32.7

7. Number of heavy atoms: 20

8. Surface charge: 0

9. Complexity: 403

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. Number of uncertain chemical bond stereocenters: 0

15. Number of covalent bond units: 1

Properties and stability

None yet

Storage method

None yet

Synthesis method

By2- Amino-5-Chlorobenzophenone is obtained by condensation, cyclization, ring expansion, methylation and elimination.


Weak tranquillizer. It has sedative, hypnotic, anti-anxiety, anti-convulsant, anti-epileptic and muscle relaxing effects. It is mainly used to treat anxiety disorders and general insomnia. It is also used for anti-epileptic and anti-convulsant drugs. It can also be used as an auxiliary drug for general anesthesia as a pre-anesthetic drug.


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