Uridine
- Formula: C9H12N2O6
- Molecular weight: 244.2014
- IUPAC Standard InChI: InChI=1S/C9H12N2O6/c12-3-4-6(14)7(15)8(17-4)11-2-1-5(13)10-9(11)16/h1-2,4,6-8,12,14-15H,3H2,(H,10,13,16)/t4-,6-,7-,8-/m1/s1
- IUPAC Standard InChIKey: DRTQHJPVMGBUCF-XVFCMESISA-N
- CAS Registry Number: 58-96-8
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: 1-β-D-Ribofuranosyl-2,4(1H,3H)-pyrimidinedione; β-D-Ribofuranoside, 2,4(1H,3H)-pyrimidinedione-1; β-Uridine; Uracil, 1-β-D-ribofuranosyl-; Urd; Uridin; 1-β-D-Ribofuranosyluracil; Uracil riboside; d-Ribosyl uracil; Uracil-1-β-d-ribofuranoside; NSC 20256
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Gas phase ion energetics data
Go To: Top, Mass spectrum (electron ionization), UV/Visible spectrum, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias
Data compiled as indicated in comments:
MM - Michael M. Meot-Ner (Mautner)
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| Proton affinity (review) | 947.6 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
| Quantity | Value | Units | Method | Reference | Comment |
| Gas basicity | 916.6 | kJ/mol | N/A | Hunter and Lias, 1998 | HL |
Proton affinity at 298K
| Proton affinity (kJ/mol) | Reference | Comment |
|---|---|---|
| 899.0 | Mezzache, Alves, et al., 2005 | EKM using amino acid reference bases. ΔS(prot) relates to difference between transition states for dimer dissociation to yield protonated nucleotide or reference base, assummed to approximate the thermochemical ΔS(prot) of the nucleotide.; MM |
Mass spectrum (electron ionization)
Go To: Top, Gas phase ion energetics data, UV/Visible spectrum, 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
Spectrum
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Additional Data
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Due to licensing restrictions, this spectrum cannot be downloaded.
| 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 | R.SELF AGRICULTURAL RES., FOOD RES. INSTITUTE, NORWICH, U.K. |
| NIST MS number | 22908 |
UV/Visible spectrum
Go To: Top, Gas phase ion energetics data, Mass spectrum (electron ionization), References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Spectrum
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Additional Data
View image of digitized spectrum (can be printed in landscape orientation).
View spectrum image in SVG format.
Download spectrum in JCAMP-DX format.
| Source | Rekunova, et al., 1975 |
|---|---|
| Owner | INEP CP RAS, NIST OSRD Collection (C) 2007 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
| Origin | INSTITUTE OF ENERGY PROBLEMS OF CHEMICAL PHYSICS, RAS |
| Source reference | RAS UV No. 23762 |
| Instrument | Specord UV-Vis |
References
Go To: Top, Gas phase ion energetics data, Mass spectrum (electron ionization), UV/Visible spectrum, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G.,
Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update,
J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018
. [all data]
Mezzache, Alves, et al., 2005
Mezzache, S.; Alves, S.; Pepe, C.; Qualquejeu, M.; Fournier, F.; Valery, J.M.; Tabet, J.C.,
Proton affinity ladder for uridine and analogs: Influence of the hydroxyl group on the sugar ring conformation,
J. Mass Spectrom., 2005, 40, 722. [all data]
Rekunova, et al., 1975
Rekunova, V.N., et al.,
Zhur. Obshchei Khim., 1975, 45, 2085. [all data]
Notes
Go To: Top, Gas phase ion energetics data, Mass spectrum (electron ionization), UV/Visible spectrum, References
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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