| Record Information |
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| Version | 5.0 |
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| Status | Expected but not Quantified |
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| Creation Date | 2012-09-06 15:16:52 UTC |
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| Update Date | 2022-03-07 02:51:58 UTC |
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| HMDB ID | HMDB0015380 |
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| Secondary Accession Numbers | |
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| Metabolite Identification |
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| Common Name | Olsalazine |
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| Description | Olsalazine, also known as dipentum or olsalazine sodium, belongs to the class of organic compounds known as azobenzenes. These are organonitrogen aromatic compounds that contain a central azo group, where each nitrogen atom is conjugated to a benzene ring. It is sold under the name Dipentum. Olsalazine is a drug which is used for the treatment of inflammatory bowel disease and ulcerative colitis. Olsalazine gained Food and Drug Administration (FDA) approval in 1990. Olsalazine is an extremely weak basic (essentially neutral) compound (based on its pKa). Like balsalazide, olsalazine is believed to deliver mesalazine, or 5-aminosalicylic acid (5-ASA), past the small intestine, directly to the large intestine, which is the active site of disease in ulcerative colitis. The chemical name is 3,3' -azobis (6-hydroxybenzoate)salicylic acid. The drug is supplied by UCB Pharma. Olsalazine is an anti-inflammatory drug used in the treatment of inflammatory bowel disease such as ulcerative colitis. It is sold as the disodium salt. The Australian biotech company Giaconda has developed a combination therapy for treating constipation-predominant irritable bowel syndrome that uses olsalazine and the anti-gout drug colchicine. |
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| Structure | OC(=O)C1=CC(=CC=C1O)\N=N\C1=CC=C(O)C(=C1)C(O)=O InChI=1S/C14H10N2O6/c17-11-3-1-7(5-9(11)13(19)20)15-16-8-2-4-12(18)10(6-8)14(21)22/h1-6,17-18H,(H,19,20)(H,21,22)/b16-15+ |
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| Synonyms | | Value | Source |
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| Dipentum | HMDB | | Olsalazine sodium | HMDB |
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| Chemical Formula | C14H10N2O6 |
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| Average Molecular Weight | 302.239 |
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| Monoisotopic Molecular Weight | 302.053886062 |
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| IUPAC Name | 5-[(E)-2-(3-carboxy-4-hydroxyphenyl)diazen-1-yl]-2-hydroxybenzoic acid |
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| Traditional Name | olsalazine |
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| CAS Registry Number | 15722-48-2 |
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| SMILES | OC(=O)C1=CC(=CC=C1O)\N=N\C1=CC=C(O)C(=C1)C(O)=O |
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| InChI Identifier | InChI=1S/C14H10N2O6/c17-11-3-1-7(5-9(11)13(19)20)15-16-8-2-4-12(18)10(6-8)14(21)22/h1-6,17-18H,(H,19,20)(H,21,22)/b16-15+ |
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| InChI Key | QQBDLJCYGRGAKP-FOCLMDBBSA-N |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds known as azobenzenes. These are organonitrogen aromatic compounds that contain a central azo group, where each nitrogen atom is conjugated to a benzene ring. |
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| Kingdom | Organic compounds |
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| Super Class | Organoheterocyclic compounds |
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| Class | Azobenzenes |
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| Sub Class | Not Available |
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| Direct Parent | Azobenzenes |
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| Alternative Parents | |
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| Substituents | - Azobenzene
- Hydroxybenzoic acid
- Salicylic acid or derivatives
- Salicylic acid
- Benzoic acid or derivatives
- Benzoic acid
- Benzoyl
- 1-hydroxy-2-unsubstituted benzenoid
- Phenol
- Monocyclic benzene moiety
- Dicarboxylic acid or derivatives
- Benzenoid
- Vinylogous acid
- Azo compound
- Organic 1,3-dipolar compound
- Carboxylic acid
- Carboxylic acid derivative
- Propargyl-type 1,3-dipolar organic compound
- Organooxygen compound
- Organonitrogen compound
- Hydrocarbon derivative
- Organic oxide
- Organopnictogen compound
- Organic oxygen compound
- Organic nitrogen compound
- Aromatic homomonocyclic compound
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| Molecular Framework | Aromatic homomonocyclic compounds |
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| External Descriptors | Not Available |
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| Ontology |
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| Physiological effect | Not Available |
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| Disposition | |
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| Process | Not Available |
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| Role | Not Available |
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| Physical Properties |
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| State | Solid |
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| Experimental Molecular Properties | | Property | Value | Reference |
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| Melting Point | 240 °C (decomposition) | Not Available | | Boiling Point | Not Available | Not Available | | Water Solubility | 0.078 g/L | Not Available | | LogP | 2.3 | Not Available |
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| Experimental Chromatographic Properties | Not Available |
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| Predicted Molecular Properties | |
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| Predicted Chromatographic Properties | Predicted Collision Cross SectionsPredicted Retention Times Underivatized| Chromatographic Method | Retention Time | Reference |
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| Measured using a Waters Acquity ultraperformance liquid chromatography (UPLC) ethylene-bridged hybrid (BEH) C18 column (100 mm × 2.1 mm; 1.7 μmparticle diameter). Predicted by Afia on May 17, 2022. Predicted by Afia on May 17, 2022. | 4.04 minutes | 32390414 | | Predicted by Siyang on May 30, 2022 | 11.3893 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 4.01 minutes | 32390414 | | AjsUoB = Accucore 150 Amide HILIC with 10mM Ammonium Formate, 0.1% Formic Acid | 55.6 seconds | 40023050 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 1718.4 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 259.8 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 89.6 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 161.5 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 85.4 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 442.9 seconds | 40023050 | | BfG_NTS_RP1 =Agilent Zorbax Eclipse Plus C18 (2.1 mm x 150 mm, 3.5 um) with Water:ACN and 0.1% Formic Acid | 498.8 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 117.1 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 743.4 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 360.2 seconds | 40023050 | | UFZ_Phenomenex = Kinetex Core-Shell C18 2.6 um, 3.0 x 100 mm, Phenomenex with Water:MeOH and 0.1% Formic Acid | 1460.9 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 271.9 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 374.8 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 600.0 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 151.6 seconds | 40023050 | | Meister zic-pHILIC pH9.3 = Merck SeQuant ZIC-pHILIC column with ACN:Water 5mM NH4Ac pH9.3 and 5mM ammonium acetate in water | 299.6 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatizedDerivatized| Derivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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| Olsalazine,1TMS,isomer #1 | C[Si](C)(C)OC(=O)C1=CC(/N=N/C2=CC=C(O)C(C(=O)O)=C2)=CC=C1O | 3202.1 | Semi standard non polar | 33892256 | | Olsalazine,1TMS,isomer #2 | C[Si](C)(C)OC1=CC=C(/N=N/C2=CC=C(O)C(C(=O)O)=C2)C=C1C(=O)O | 3186.3 | Semi standard non polar | 33892256 | | Olsalazine,2TMS,isomer #1 | C[Si](C)(C)OC(=O)C1=CC(/N=N/C2=CC=C(O[Si](C)(C)C)C(C(=O)O)=C2)=CC=C1O | 3078.7 | Semi standard non polar | 33892256 | | Olsalazine,2TMS,isomer #2 | C[Si](C)(C)OC(=O)C1=CC(/N=N/C2=CC=C(O)C(C(=O)O[Si](C)(C)C)=C2)=CC=C1O | 3053.3 | Semi standard non polar | 33892256 | | Olsalazine,2TMS,isomer #3 | C[Si](C)(C)OC(=O)C1=CC(/N=N/C2=CC=C(O)C(C(=O)O)=C2)=CC=C1O[Si](C)(C)C | 3080.9 | Semi standard non polar | 33892256 | | Olsalazine,2TMS,isomer #4 | C[Si](C)(C)OC1=CC=C(/N=N/C2=CC=C(O[Si](C)(C)C)C(C(=O)O)=C2)C=C1C(=O)O | 3081.7 | Semi standard non polar | 33892256 | | Olsalazine,3TMS,isomer #1 | C[Si](C)(C)OC(=O)C1=CC(/N=N/C2=CC=C(O[Si](C)(C)C)C(C(=O)O[Si](C)(C)C)=C2)=CC=C1O | 3016.8 | Semi standard non polar | 33892256 | | Olsalazine,3TMS,isomer #2 | C[Si](C)(C)OC(=O)C1=CC(/N=N/C2=CC=C(O[Si](C)(C)C)C(C(=O)O)=C2)=CC=C1O[Si](C)(C)C | 3041.2 | Semi standard non polar | 33892256 | | Olsalazine,4TMS,isomer #1 | C[Si](C)(C)OC(=O)C1=CC(/N=N/C2=CC=C(O[Si](C)(C)C)C(C(=O)O[Si](C)(C)C)=C2)=CC=C1O[Si](C)(C)C | 3061.9 | Semi standard non polar | 33892256 | | Olsalazine,1TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC(=O)C1=CC(/N=N/C2=CC=C(O)C(C(=O)O)=C2)=CC=C1O | 3476.5 | Semi standard non polar | 33892256 | | Olsalazine,1TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)OC1=CC=C(/N=N/C2=CC=C(O)C(C(=O)O)=C2)C=C1C(=O)O | 3502.5 | Semi standard non polar | 33892256 | | Olsalazine,2TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC(=O)C1=CC(/N=N/C2=CC=C(O[Si](C)(C)C(C)(C)C)C(C(=O)O)=C2)=CC=C1O | 3608.3 | Semi standard non polar | 33892256 | | Olsalazine,2TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)OC(=O)C1=CC(/N=N/C2=CC=C(O)C(C(=O)O[Si](C)(C)C(C)(C)C)=C2)=CC=C1O | 3546.2 | Semi standard non polar | 33892256 | | Olsalazine,2TBDMS,isomer #3 | CC(C)(C)[Si](C)(C)OC(=O)C1=CC(/N=N/C2=CC=C(O)C(C(=O)O)=C2)=CC=C1O[Si](C)(C)C(C)(C)C | 3602.1 | Semi standard non polar | 33892256 | | Olsalazine,2TBDMS,isomer #4 | CC(C)(C)[Si](C)(C)OC1=CC=C(/N=N/C2=CC=C(O[Si](C)(C)C(C)(C)C)C(C(=O)O)=C2)C=C1C(=O)O | 3638.2 | Semi standard non polar | 33892256 | | Olsalazine,3TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC(=O)C1=CC(/N=N/C2=CC=C(O[Si](C)(C)C(C)(C)C)C(C(=O)O[Si](C)(C)C(C)(C)C)=C2)=CC=C1O | 3690.6 | Semi standard non polar | 33892256 | | Olsalazine,3TBDMS,isomer #2 | CC(C)(C)[Si](C)(C)OC(=O)C1=CC(/N=N/C2=CC=C(O[Si](C)(C)C(C)(C)C)C(C(=O)O)=C2)=CC=C1O[Si](C)(C)C(C)(C)C | 3790.9 | Semi standard non polar | 33892256 | | Olsalazine,4TBDMS,isomer #1 | CC(C)(C)[Si](C)(C)OC(=O)C1=CC(/N=N/C2=CC=C(O[Si](C)(C)C(C)(C)C)C(C(=O)O[Si](C)(C)C(C)(C)C)=C2)=CC=C1O[Si](C)(C)C(C)(C)C | 3864.1 | Semi standard non polar | 33892256 |
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| GC-MS Spectra| Spectrum Type | Description | Splash Key | Deposition Date | Source | View |
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| Predicted GC-MS | Predicted GC-MS Spectrum - Olsalazine GC-MS (Non-derivatized) - 70eV, Positive | splash10-0udi-1941000000-280432522076c6c2ecde | 2017-09-01 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - Olsalazine GC-MS (4 TMS) - 70eV, Positive | splash10-007k-3091060000-9240a61a4df477ec469a | 2017-10-06 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - Olsalazine GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - Olsalazine GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | Wishart Lab | View Spectrum |
MS/MS Spectra| Spectrum Type | Description | Splash Key | Deposition Date | Source | View |
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| Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Olsalazine 10V, Positive-QTOF | splash10-0udi-0169000000-eec3ced209a0cbb0db94 | 2016-08-02 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Olsalazine 20V, Positive-QTOF | splash10-0pbi-0192000000-1871f32f63f256924151 | 2016-08-02 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Olsalazine 40V, Positive-QTOF | splash10-0zi0-4940000000-5242870d6e92c5770375 | 2016-08-02 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Olsalazine 10V, Negative-QTOF | splash10-0udi-0269000000-d99f02b963a55874115d | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Olsalazine 20V, Negative-QTOF | splash10-0r00-0291000000-d498e8b80c9d6157a43e | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Olsalazine 40V, Negative-QTOF | splash10-0a4i-0920000000-9308cf8b2a3270fdbe45 | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Olsalazine 10V, Positive-QTOF | splash10-000i-0091000000-0407edb727a6dc86736b | 2021-10-11 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Olsalazine 20V, Positive-QTOF | splash10-00kr-0290000000-15f46b8ccd52040f0d87 | 2021-10-11 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Olsalazine 40V, Positive-QTOF | splash10-0c33-0690000000-835682abfe82b09946d9 | 2021-10-11 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Olsalazine 10V, Negative-QTOF | splash10-0udi-0019000000-6f1fdd414a31404ce61f | 2021-10-11 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Olsalazine 20V, Negative-QTOF | splash10-08fr-0091000000-8f61d29ce7524211d111 | 2021-10-11 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Olsalazine 40V, Negative-QTOF | splash10-03di-0090000000-4e4e69e7208a4f9deb46 | 2021-10-11 | Wishart Lab | View Spectrum |
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