- InChI
- InChI=1S/C15H10Cl2N2O2/c16-8-5-6-12-10(7-8)13(19-15(21)14(20)18-12)9-3-1-2-4-11(9)17/h1-7,15,21H,(H,18,20)
- InChI Key
- DIWRORZWFLOCLC-UHFFFAOYSA-N
- Formula
- C15H11Cl2N2O2
- SMILES
-
OC1=Nc2ccc(Cl)cc2C(c2ccccc2Cl)
=NC1O - Molecular Weight1
- 322.17
- CAS
- 846-49-1
- Other Names
-
- (.+/-.)-Lorazepam
- 2H-1,4-Benzodiazepin-2-one, 7-chloro-5-(2-chlorophenyl)-1,3-dihydro-3-hydroxy-
- 2H-1,4-Benzodiazepin-2-one, 7-chloro-5-(o-chlorophenyl)-1,3-dihydro-3-hydroxy-
- 7-Chloro-5-(2-chlorophenyl)-1,3-dihydro-3-hydroxy-2H-1,4-benzodiazepin-2-one
- 7-Chloro-5-(2-chlorophenyl)-1,3-dihydro-3-hydroxy-2H-1,4-benzodiazepin-2-one ((±)lorazepam)
- 7-Chloro-5-(2-chlorophenyl)-3-hydroxy-1H-1,4-benzodiazepin-2(3H)-one
- 7-Chloro-5-(o-chlorophenyl)-1,3-dihydro-3-hydroxy-2H-1,4-benzodiazepin-2-one
- Almazine
- Anxiedin
- Anxira
- Anzepam
- Aplacasse
- Apo-Lorazepam
- Aripax
- Ativan
- Azurogen
- Bonatranquan
- Bonton
- Delormetazepam
- Demethyllormetazepam
- Duralozam
- Efasedan
- Emotival
- Equitam
- Kalmalin
- Larpose
- Laubeel
- Lorabenz
- Loram
- Lorapam
- Lorat
- Lorax
- Lorazene
- Lorazep
- Lorazin
- Lorenin
- Loridem
- Lorsedal
- Lorsilan
- Lozepam
- Merlit
- NSC 289758
- Nervistop L
- Norlormetazepam
- Novhepar
- Orfidal
- Pro dorm
- Psicopax
- Punktyl
- Quait
- Renaquil
- Rocosgen
- Securit
- Sedatival
- Sedazin
- Sedizepan
- Sidenar
- Silence
- Somagerol
- Stapam
- Tavor
- Temesta
- Titus
- Tranqipam
- Trapax
- Upan
- Wy 4036
- Wypax
- o-Chlorooxazepam
- o-Chloroxazepam
- Cp,gas : Ideal gas heat capacity (J/mol×K).
- ΔfusH° : Enthalpy of fusion at standard conditions (kJ/mol).
- ΔfusH : Enthalpy of fusion at a given temperature (kJ/mol).
- ΔvapH° : Enthalpy of vaporization at standard conditions (kJ/mol).
- log10WS : Log10 of Water solubility in mol/l.
- logPoct/wat : Octanol/Water partition coefficient.
- McVol : McGowan's characteristic volume (ml/mol).
- Inp : Non-polar retention indices.
- Tfus : Normal melting (fusion) point (K).
- 1: Molecular weight from the IUPAC atomic weights tables.
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Physical Properties
| Property | Value | Unit | Source |
|---|---|---|---|
| ΔfusH° | 43.97 | kJ/mol | Joback Calculated Property |
| ΔvapH° | 140.81 | kJ/mol | Relay (1.0) Calculated Property |
| log10WS | [-3.60; -1.77] |
|
|
| log10WS | -1.77 | Aq. Solubility Prediction | |
| log10WS | -3.60 | Estimated Solubility | |
| logPoct/wat | 3.751 | Crippen Calculated Property | |
| McVol | 211.410 | ml/mol | McGowan Calculated Property |
| Inp | [2375.00; 2492.80] |
|
|
| Inp | 2402.00 | NIST | |
| Inp | 2395.00 | NIST | |
| Inp | Outlier 2492.80 | NIST | |
| Inp | 2423.00 | NIST | |
| Inp | 2448.00 | NIST | |
| Inp | 2423.00 | NIST | |
| Inp | 2384.00 | NIST | |
| Inp | 2430.00 | NIST | |
| Inp | 2442.00 | NIST | |
| Inp | 2440.00 | NIST | |
| Inp | 2411.00 | NIST | |
| Inp | 2399.00 | NIST | |
| Inp | 2430.00 | NIST | |
| Inp | Outlier 2492.80 | NIST | |
| Inp | 2426.00 | NIST | |
| Inp | 2375.00 | NIST | |
| Inp | 2375.00 | NIST | |
| Inp | 2380.00 | NIST | |
| Inp | 2402.00 | NIST | |
| Inp | 2448.00 | NIST | |
| Inp | 2448.00 | NIST | |
| Inp | 2430.00 | NIST | |
| Inp | 2395.00 | NIST | |
| Inp | 2391.00 | NIST | |
| Inp | 2402.00 | NIST | |
| Inp | 2430.00 | NIST | |
| Inp | 2423.00 | NIST | |
| Inp | 2442.00 | NIST | |
| Inp | 2391.00 | NIST | |
| Inp | 2411.00 | NIST | |
| Tfus | 439.75 | K | Aq. Solubility Prediction |
Cheméo can also estimate Normal Boiling Point Temperature, Critical Temperature, Critical Pressure, Critical Volume, Enthalpy of formation at standard conditions, Standard Gibbs free energy of formation, Acentric Factor, Ionization energy for this compound, but they fall outside the models' validated range, so they are not shown here. Open the prediction tool to compute them on demand.
Temperature Dependent Properties
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Cp,gas | [624.98; 643.08] | J/mol×K | [1001.08; 1250.13] |
|
| Cp,gas | 624.98 | J/mol×K | 1001.08 | Joback Calculated Property |
| Cp,gas | 631.26 | J/mol×K | 1042.59 | Joback Calculated Property |
| Cp,gas | 636.19 | J/mol×K | 1084.10 | Joback Calculated Property |
| Cp,gas | 639.78 | J/mol×K | 1125.61 | Joback Calculated Property |
| Cp,gas | 642.07 | J/mol×K | 1167.12 | Joback Calculated Property |
| Cp,gas | 643.08 | J/mol×K | 1208.62 | Joback Calculated Property |
| Cp,gas | 642.83 | J/mol×K | 1250.13 | Joback Calculated Property |
| ΔfusH | [75.20; 92.57] | kJ/mol | [446.50; 453.20] |
|
| ΔfusH | 92.57 | kJ/mol | 446.50 | NIST |
| ΔfusH | 75.20 | kJ/mol | 453.20 | NIST |
Similar Compounds
Find more compounds similar to Lorazepam.
Mixtures
- Propylene Glycol + Water + Lorazepam
- Water + Lorazepam
- Ethanol + Lorazepam
- Ethanol + Water + Lorazepam
Sources
- Cheméo Relay (1.0)
- Cheméo Relay (1.0, beta) Beta: served but experimental, data-limited and below our cross-validation release bar; the Joback value is recommended where available.
- Crippen Method
- Solubility of Chlordiazepoxide, Diazepam, and Lorazepam in Ethanol + Water Mixtures at 303.2 K
- Solubility of 7-Chloro-2-methylamino-5-phenyl-3H-1,4-benzodiazepine-4-oxide, 7-Chloro-1,3-dihydro-1-methyl-5-phenyl-2H-1,4-benzodiazepin-2-one, and 7-Chloro-5-(2-chlorophenyl)-3-hydroxy-1,3-dihydro-1,4-benzodiazepin-2-one in (Propane-1,2-diol + Water) at a Temperature of 303.2 K
- Joback Method
- Aqueous Solubility Prediction Method
- Estimated Solubility Method
- McGowan Method
- NIST Webbook
Note: Cheméo is only indexing the data, follow the source links to retrieve the latest data. The source is also providing more information like the publication year, authors and more.
Take the time to validate and double check the source of the data.
Outlier This icon means
that the value is more than 2 standard deviations away from the
property mean.
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