| Record Information |
|---|
| Version | 5.0 |
|---|
| Status | Expected but not Quantified |
|---|
| Creation Date | 2021-09-22 16:50:39 UTC |
|---|
| Update Date | 2021-09-22 16:50:39 UTC |
|---|
| HMDB ID | HMDB0301747 |
|---|
| Secondary Accession Numbers | None |
|---|
| Metabolite Identification |
|---|
| Common Name | Mellein |
|---|
| Description | Mellein, also known as (R)-mellein, is a member of the class of compounds known as 2-benzopyrans. 2-benzopyrans are organic aromatic compounds that 1-benzopyran, a bicyclic compound made up of a benzene ring fused to a pyran, so that the oxygen atom is at the 2-position. Mellein is slightly soluble (in water) and a very weakly acidic compound (based on its pKa). Mellein can be found in cocoa powder, which makes mellein a potential biomarker for the consumption of this food product. Mellein is a dihydroisocoumarin, a phenolic compound produced by Aspergillus ochraceus . |
|---|
| Structure | C[C@@H]1CC2=CC=CC(O)=C2C(=O)O1 InChI=1S/C10H10O3/c1-6-5-7-3-2-4-8(11)9(7)10(12)13-6/h2-4,6,11H,5H2,1H3/t6-/m1/s1 |
|---|
| Synonyms | | Value | Source |
|---|
| (R)-Mellein | ChEMBL |
|
|---|
| Chemical Formula | C10H10O3 |
|---|
| Average Molecular Weight | 178.1846 |
|---|
| Monoisotopic Molecular Weight | 178.062994186 |
|---|
| IUPAC Name | (3R)-8-hydroxy-3-methyl-3,4-dihydro-1H-2-benzopyran-1-one |
|---|
| Traditional Name | (3R)-8-hydroxy-3-methyl-3,4-dihydro-2-benzopyran-1-one |
|---|
| CAS Registry Number | 480-33-1 |
|---|
| SMILES | C[C@@H]1CC2=CC=CC(O)=C2C(=O)O1 |
|---|
| InChI Identifier | InChI=1S/C10H10O3/c1-6-5-7-3-2-4-8(11)9(7)10(12)13-6/h2-4,6,11H,5H2,1H3/t6-/m1/s1 |
|---|
| InChI Key | KWILGNNWGSNMPA-ZCFIWIBFSA-N |
|---|
| Chemical Taxonomy |
|---|
| Description | Belongs to the class of organic compounds known as 2-benzopyrans. These are organic aromatic compounds that 1-benzopyran, a bicyclic compound made up of a benzene ring fused to a pyran, so that the oxygen atom is at the 2-position. |
|---|
| Kingdom | Organic compounds |
|---|
| Super Class | Organoheterocyclic compounds |
|---|
| Class | Benzopyrans |
|---|
| Sub Class | 2-benzopyrans |
|---|
| Direct Parent | 2-benzopyrans |
|---|
| Alternative Parents | |
|---|
| Substituents | - 2-benzopyran
- 1-hydroxy-4-unsubstituted benzenoid
- 1-hydroxy-2-unsubstituted benzenoid
- Benzenoid
- Vinylogous acid
- Lactone
- Carboxylic acid ester
- Oxacycle
- Monocarboxylic acid or derivatives
- Carboxylic acid derivative
- Organic oxygen compound
- Organic oxide
- Hydrocarbon derivative
- Organooxygen compound
- Aromatic heteropolycyclic compound
|
|---|
| Molecular Framework | Aromatic heteropolycyclic compounds |
|---|
| External Descriptors | Not Available |
|---|
| Ontology |
|---|
| Physiological effect | Not Available |
|---|
| Disposition | |
|---|
| Process | Not Available |
|---|
| Role | Not Available |
|---|
| Physical Properties |
|---|
| State | Not Available |
|---|
| Experimental Molecular Properties | | Property | Value | Reference |
|---|
| Melting Point | Not Available | Not Available | | Boiling Point | Not Available | Not Available | | Water Solubility | Not Available | Not Available | | LogP | Not Available | Not Available |
|
|---|
| Experimental Chromatographic Properties | Not Available |
|---|
| Predicted Molecular Properties | |
|---|
| Predicted Chromatographic Properties | Predicted Collision Cross SectionsPredicted Retention Times Underivatized| Chromatographic Method | Retention Time | Reference |
|---|
| Predicted by Siyang on May 30, 2022 | 13.5774 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 1.59 minutes | 32390414 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 2164.6 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 425.0 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 163.3 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 270.4 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 301.6 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 575.3 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 | 684.7 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 81.0 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 1092.0 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 432.9 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 | 1358.1 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 383.9 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 463.1 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 521.0 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 331.1 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 | 75.8 seconds | 40023050 |
Predicted Kovats Retention IndicesNot Available |
|---|