Alprazolam
- Formula: C17H13ClN4
- Molecular weight: 308.765
- IUPAC Standard InChI: InChI=1S/C17H13ClN4/c1-11-20-21-16-10-19-17(12-5-3-2-4-6-12)14-9-13(18)7-8-15(14)22(11)16/h2-9H,10H2,1H3
- IUPAC Standard InChIKey: VREFGVBLTWBCJP-UHFFFAOYSA-N
- CAS Registry Number: 28981-97-7
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: 4H-[1,2,4]Triazolo[4,3-a][1,4]benzodiazepine, 8-chloro-1-methyl-6-phenyl-; 4H-s-Triazolo(4,3-a)(1,4)benzodiazepine, 8-chloro-1-methyl-6-phenyl-; 8-Chloro-1-methyl-6-phenyl-4H-s-triazolo(4,3-a)(1,4)benzodiazepine; D 65MT; U 31889; TUS-1; Xanax; Alplax; Tafil; Trankimazin; Tranquinal; Xanor; 8-Chloro-1-methyl-6-phenyl-4H-[1,2,4]triazolo[4,3-a][1,4]benzodiazepine; Alcelam; Alpaz; Alpram; Alprazolam intensol; Alzam; Anpress; Apo-Alpraz; Constan; Frontal; Kalma; Panix; Prinox; Relaxol; Solanax; Tafil D; Tricalma; Valeans; Xanagis; Xanax TS; Xanolam; Zolam; Zolarem; Zoldac; Zopax; Zopic; Zotran; 8-Chloro-1-methyl-6-phenyl-4H-[1,2,4]triazolo[4,3-a] [1,4]-benzodiazepine (alprazolam)
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Phase change data
Go To: Top, Gas Chromatography, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: William E. Acree, Jr., James S. Chickos
Enthalpy of fusion
| ΔfusH (kcal/mol) | Temperature (K) | Method | Reference |
|---|---|---|---|
| 7.65 | 501.8 | DSC | Wassvik, Holmén, et al., 2008 |
Gas Chromatography
Go To: Top, Phase change data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Kovats' RI, non-polar column, isothermal
| Column type | Active phase | Temperature (C) | I | Reference | Comment |
|---|---|---|---|---|---|
| Capillary | BP-1 | 250. | 2936. | Japp, Garthwaite, et al., 1988 | 25. m/0.22 mm/0.25 μm, N2 |
| Capillary | DB-1 | 250. | 2908. | Japp, Garthwaite, et al., 1988 | 30. m/0.53 mm/1.5 μm, N2 |
Van Den Dool and Kratz RI, non-polar column, temperature ramp
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | VF-5MS | 3243.2 | Tretyakov, 2014 | 30. m/0.25 mm/0.25 μm, He; Tstart: 60. C; Tend: 270. C |
| Capillary | DB-1 | 2910. | Perrigo, Peel, et al., 1985 | 15. m/0.32 mm/0.25 μm, He, 8. K/min, 280. C @ 5. min; Tstart: 120. C |
| Capillary | DB-1 | 2910. | Perrigo, Ballantyne, et al., 1984 | 15. m/0.25 mm/0.25 μm, He, 8. K/min, 280. C @ 5. min; Tstart: 120. C |
Normal alkane RI, non-polar column, temperature ramp
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | BP-1 | 2936. | MHA, 9999 | Tstart: 100. C; Tend: 300. C |
| Capillary | DB-5 | 2936. | Zamechnik, Ethier, et al., 1989 | 15. m/0.25 mm/0.25 μm, He, 150. C @ 1. min, 10. K/min; Tend: 260. C |
References
Go To: Top, Phase change data, Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Wassvik, Holmén, et al., 2008
Wassvik, Carola M.; Holmén, Anders G.; Draheim, Rieke; Artursson, Per; Bergström, Christel A.S.,
Molecular Characteristics for Solid-State Limited Solubility,
J. Med. Chem., 2008, 51, 10, 3035-3039, https://doi.org/10.1021/jm701587d
. [all data]
Japp, Garthwaite, et al., 1988
Japp, M.; Garthwaite, K.; Geeson, A.V.; Osselton, M.D.,
Collection of Analytical Data for Benzodiazepines and Benzophenones,
J. Chromatogr., 1988, 439, 2, 317-339, https://doi.org/10.1016/S0021-9673(01)83844-9
. [all data]
Tretyakov, 2014
Tretyakov, K.V.,
Retention Data. NIST Mass Spectrometry Data Center., NIST Mass Spectrometry Data Center, 2014. [all data]
Perrigo, Peel, et al., 1985
Perrigo, B.J.; Peel, H.W.; Ballantyne, D.J.,
Use of Dual-Column Fused-Silica Capillary Gas Chromatography in Combination with Detector Response Factors for Analytical Toxicology.,
J. Chromatogr., 1985, 341, 81-88, https://doi.org/10.1016/S0378-4347(00)84011-6
. [all data]
Perrigo, Ballantyne, et al., 1984
Perrigo, B.J.; Ballantyne, D.J.; Peel, H.W.,
Condierations in developing a data base for drugs on a DBI capillary column,
J. Can. Soc. Forensic Sci., 1984, 17, 2, 41-49, https://doi.org/10.1080/00085030.1984.10757360
. [all data]
MHA, 9999
MHA, Directorate of ForensicScience.,
Forensic Toxicology, 9999. [all data]
Zamechnik, Ethier, et al., 1989
Zamechnik, J.; Ethier, J.-C.; Neville, G.A.,
Benzodiazepines- an extensive collection of mass spectra,
J. Can. Soc. Forensic Sci., 1989, 22, 3, 233-259, https://doi.org/10.1080/00085030.1989.10757437
. [all data]
Notes
Go To: Top, Phase change data, Gas Chromatography, References
- Symbols used in this document:
ΔfusH Enthalpy of fusion - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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