Butamben
- Formula: C11H15NO2
- Molecular weight: 193.2423
- IUPAC Standard InChIKey: IUWVALYLNVXWKX-UHFFFAOYSA-N
- CAS Registry Number: 94-25-7
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: Benzoic acid, 4-amino-, butyl ester; Benzoic acid, p-amino-, butyl ester; n-Butyl p-aminobenzoate; p-Aminobenzoic acid, butyl ester; Butesin; Butesine; Butoform; Butyl p-aminobenzoate; Butyl Keloform; Butyl 4-aminobenzoate; Butylcaine; Planoform; Scuroform; Scuroforme; 4-(Butoxycarbonyl)aniline; p-Aminobenzoic acid n-butyl ester; Butylester kyseliny p-aminobenzoove; Butsein; 4-Aminobenzoic acid butyl ester; NSC 128464; Butyl aminobenzoate
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Phase change data
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled as indicated in comments:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Tfus | 331. | K | N/A | Neau, Flynn, et al., 1989 | Uncertainty assigned by TRC = 0.5 K; TRC |
Tfus | 330. to 332. | K | N/A | Buckingham and Donaghy, 1982 | BS |
Tfus | 329. | K | N/A | Schwartz and Paruta, 1976 | Uncertainty assigned by TRC = 0.5 K; TRC |
Tfus | 329. | K | N/A | Yalkowsky, Flynn, et al., 1972 | Uncertainty assigned by TRC = 1. K; TRC |
Reduced pressure boiling point
Tboil (K) | Pressure (bar) | Reference | Comment |
---|---|---|---|
446.7 | 0.01 | Weast and Grasselli, 1989 | BS |
447. | 0.01 | Buckingham and Donaghy, 1982 | BS |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
23.9 | 330.6 | DSC | Schmidt, 2005 | AC |
20.46 | 331.1 | N/A | Acree, 1991 | AC |
Mass spectrum (electron ionization)
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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
Spectrum
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Additional Data
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Owner | NIST Mass Spectrometry Data Center Collection (C) 2014 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | Japan AIST/NIMC Database- Spectrum MS-NW-2934 |
NIST MS number | 231530 |
Gas Chromatography
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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
Normal alkane RI, non-polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Capillary | JXR | 180. | 1759. | von Buchi, Lorini, et al., 1972 | |
Capillary | JXR | 200. | 1758. | von Buchi, Lorini, et al., 1972 |
References
Go To: Top, Phase change data, Mass spectrum (electron ionization), Gas Chromatography, NIST Subscription Links, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Neau, Flynn, et al., 1989
Neau, S.H.; Flynn, G.L.; Yalkowsky, S.H.,
Int. J. Pharm., 1989, 49, 223. [all data]
Buckingham and Donaghy, 1982
Buckingham, J.; Donaghy, S.M.,
Dictionary of Organic Compounds: Fifth Edition, Chapman and Hall, New York, 1982, 1. [all data]
Schwartz and Paruta, 1976
Schwartz, P.A.; Paruta, A.N.,
Solution thermodynamics of alkyl p-aminobenzoates,
J. Pharm. Sci., 1976, 65, 252. [all data]
Yalkowsky, Flynn, et al., 1972
Yalkowsky, S.H.; Flynn, G.L.; Slunick, T.G.,
Importance of chain length on physicochemical and crystalline properties of organic homologs,
J. Pharm. Sci., 1972, 61, 852. [all data]
Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]
Schmidt, 2005
Schmidt, A.C.,
Structural characteristics and crystal polymorphism of three local anaesthetic bases,
International Journal of Pharmaceutics, 2005, 298, 1, 186-197, https://doi.org/10.1016/j.ijpharm.2005.04.025
. [all data]
Acree, 1991
Acree, William E.,
Thermodynamic properties of organic compounds: enthalpy of fusion and melting point temperature compilation,
Thermochimica Acta, 1991, 189, 1, 37-56, https://doi.org/10.1016/0040-6031(91)87098-H
. [all data]
von Buchi, Lorini, et al., 1972
von Buchi, J.; Lorini, V.; Perlia, X.,
Gaschromatographische Untersuchung einiger homologer Reihen von Lokalanaesthetica,
Pharm. Acta Helv., 1972, 47, 65, 377-393. [all data]
Notes
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- Symbols used in this document:
Tboil Boiling point Tfus Fusion (melting) point ΔfusH Enthalpy of fusion - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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