chromen-2-one (CAS 103802-83-1)
This is the main record page for chromen-2-one · CAS 103802-83-1. Molecular formula C9H6O2. Known by 219 synonyms.
Overview
- CAS No.
- 103802-83-1
- English name
- chromen-2-one
- Molecular formulaVerified
- C9H6O2
Formula verified.
- Created
- 3/30/2026, 4:04:23 PM
- Updated
- 3/30/2026, 4:26:37 PM
Properties
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Safety
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About this chemical
This page represents the primary record for chromen-2-one with CAS Registry Number 103802-83-1. The molecular formula is C9H6O2. This chemical may be referenced by 219 different names or synonyms.
Primary identifiers: English name · CAS · Molecular formula (when available).
Synonyms and naming
Chemicals are often known by multiple names depending on context, industry, or language. This entry includes 219 searchable synonyms. Each synonym links back to this main record.
Looking for a specific name? Check the synonyms list below or use the synonym landing pages.
Formula status
The molecular formula C9H6O2 for this substance is verified. This identifier has been confirmed to accurately represent the chemical composition.
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Same formula
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Same name search
Similar names (synonym overlap)
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Synonyms
- coumarin· Synonym page
- 91-64-5· Synonym page
- 2H-Chromen-2-one· Synonym page
- 2H-1-Benzopyran-2-one· Synonym page
- cumarin· Synonym page
- 1,2-Benzopyrone· Synonym page
- Tonka bean camphor· Synonym page
- Rattex· Synonym page
- Coumarinic anhydride· Synonym page
- Coumarine· Synonym page
- cis-o-Coumarinic acid lactone· Synonym page
- Coumarinic lactone· Synonym page
- o-Hydroxycinnamic acid lactone· Synonym page
- Benzo-alpha-pyrone· Synonym page
- o-Hydroxycinnamic lactone· Synonym page
- 2-Oxo-1,2-benzopyran· Synonym page
- Kumarin· Synonym page
- 5,6-Benzo-2-pyrone· Synonym page
- 2H-Benzo(b)pyran-2-one· Synonym page
- 2H-1-Benzopyran, 2-oxo-· Synonym page
- 5,6-Benzo-alpha-pyrone· Synonym page
- Benzo-a-pyrone· Synonym page
- o-Coumaric acid lactone· Synonym page
- o-Hydroxyzimtsaure-lacton· Synonym page
- Coumarinum· Synonym page
- cis-o-Coumaric acid anhydride· Synonym page
- DTXSID7020348· Synonym page
- 2H-Benzo[b]pyran-2-one· Synonym page
- 2-Propenoic acid, 3-(2-hydroxyphenyl)-, delta-lactone· Synonym page
- 2-oxo-2H-1-benzopyran· Synonym page
- Cinnamic acid, o-hydroxy-, delta-lactone· Synonym page
- NSC-8774· Synonym page
- A4VZ22K1WT· Synonym page
- Nci-c07103· Synonym page
- Coumarin (prohibited)· Synonym page
- CHEBI:28794· Synonym page
- NSC8774· Synonym page
- o-hydroxycinnamic acid delta-lactone· Synonym page
- DTXCID50348· Synonym page
- Lodema· Synonym page
- Coumarin Phenolic· Synonym page
- Coumarin 1513· Synonym page
- RefChem:5706· Synonym page
- 202-086-7· Synonym page
- Kumarin [Czech]· Synonym page
- 103802-83-1· Synonym page
- Caswell No. 259C· Synonym page
- NCI C07103· Synonym page
- chromenone· Synonym page
- MFCD00006850· Synonym page
- o-Hydroxyzimtsaure-lacton [German]· Synonym page
- NSC 8774· Synonym page
- EPA Pesticide Chemical Code 127301· Synonym page
- BRN 0383644· Synonym page
- Benzo-.alpha.-pyrone· Synonym page
- AI3-00753· Synonym page
- 3-(2-Hydroxyphenyl)-2-propenoic delta-lactone· Synonym page
- CHEMBL6466· Synonym page
- 2-Propenoic acid, 3-(2-hydroxyphenyl)-delta-lactone· Synonym page
- MLS000028741· Synonym page
- NCGC00091502-01· Synonym page
- Coumarin, >=98%· Synonym page
- SMR000059040· Synonym page
- ST023509· Synonym page
- 2h-chromene-2-one· Synonym page
- 2-Propenoic acid, 3-(2-hydroxyphenyl)-, d-lactone· Synonym page
- 1-Benzopyran-2-one· Synonym page
- 2-Propenoic acid, 3-(2-hydroxyphenyl)-, .delta.-lactone· Synonym page
- benzopyranone· Synonym page
- CAS-91-64-5· Synonym page
- Coumarin [NF]· Synonym page
- COU· Synonym page
- CCRIS 181· Synonym page
- 2H-Benzopyran-2-one· Synonym page
- HSDB 1623· Synonym page
- SR-01000721887· Synonym page
- EINECS 202-086-7· Synonym page
- UNII-A4VZ22K1WT· Synonym page
- chromen-one· Synonym page
- a coumarin· Synonym page
- coumarin-· Synonym page
- Coumarin CRS· Synonym page
- benzopyrylium olate· Synonym page
- Coumarin (DCF)· Synonym page
- 1, 2-Benzopyrone· Synonym page
- a 1,2-benzopyrone· Synonym page
- Coumarin (Standard)· Synonym page
- Venalot mono (TN)· Synonym page
- Spectrum_001336· Synonym page
- COUMARIN [HSDB]· Synonym page
- COUMARIN [IARC]· Synonym page
- Opera_ID_268· Synonym page
- 2H-Chromen-2-one #· Synonym page
- COUMARIN [MI]· Synonym page
- 2H-1-benzopyran-2-on· Synonym page
- Spectrum2_000303· Synonym page
- Spectrum3_001772· Synonym page
- Spectrum4_001818· Synonym page
- Spectrum5_000555· Synonym page
- COUMARINUM [HPUS]· Synonym page
- COUMARIN [MART.]· Synonym page
- bmse000077· Synonym page
- COUMARIN [WHO-DD]· Synonym page
- Epitope ID:114082· Synonym page
- EC 202-086-7· Synonym page
- SCHEMBL6252· Synonym page
- WLN: T66 BOVJ· Synonym page
- SCHEMBL25909· Synonym page
- BSPBio_003263· Synonym page
- KBioGR_002460· Synonym page
- KBioSS_001816· Synonym page
- 5-17-10-00143 (Beilstein Handbook Reference)· Synonym page
- MLS001148422· Synonym page
- MLS002454395· Synonym page
- {2H-Benzo[b]pyran-2-one}· Synonym page
- BIDD:ER0667· Synonym page
- SCHEMBL154753· Synonym page
- SCHEMBL157615· Synonym page
- SCHEMBL158062· Synonym page
- SCHEMBL159837· Synonym page
- SCHEMBL453408· Synonym page
- SPECTRUM1400208· Synonym page
- SPBio_000266· Synonym page
- orb1310304· Synonym page
- orb3025741· Synonym page
- SCHEMBL1038138· Synonym page
- SCHEMBL1041307· Synonym page
- SCHEMBL3441294· Synonym page
- Cinnamic acid, .delta.-lactone· Synonym page
- Coumarin, >=99% (HPLC)· Synonym page
- SCHEMBL12612026· Synonym page
- SCHEMBL12612153· Synonym page
- SCHEMBL16908406· Synonym page
- SCHEMBL29385611· Synonym page
- BDBM12342· Synonym page
- HY-N0709R· Synonym page
- KBio2_001816· Synonym page
- KBio2_004384· Synonym page
- KBio2_006952· Synonym page
- KBio3_002764· Synonym page
- GLXC-19130· Synonym page
- HMS1923M11· Synonym page
- HMS2091E19· Synonym page
- HMS2232H18· Synonym page
- HMS3369L08· Synonym page
- HMS3652B05· Synonym page
- HMS3885D09· Synonym page
- HMS5082H04· Synonym page
- Pharmakon1600-01400208· Synonym page
- HY-N0709· Synonym page
- Tox21_111141· Synonym page
- Tox21_202427· Synonym page
- Tox21_300057· Synonym page
- CCG-38580· Synonym page
- EBC-44176· Synonym page
- MSK000944· Synonym page
- NSC755852· Synonym page
- s4170· Synonym page
- SBB000094· Synonym page
- STK066167· Synonym page
- COUMARIN (PROHIBITED) [FHFI]· Synonym page
- AKOS000120175· Synonym page
- Tox21_111141_1· Synonym page
- 2H-chromen-2-one (ACD/Name 4.0)· Synonym page
- CR-0048· Synonym page
- CS-8148· Synonym page
- DB04665· Synonym page
- FC20572· Synonym page
- NSC-755852· Synonym page
- SDCCGMLS-0066912.P001· Synonym page
- NCGC00091502-02· Synonym page
- NCGC00091502-03· Synonym page
- NCGC00091502-04· Synonym page
- NCGC00091502-05· Synonym page
- NCGC00091502-06· Synonym page
- NCGC00091502-07· Synonym page
- NCGC00091502-08· Synonym page
- NCGC00091502-09· Synonym page
- NCGC00091502-11· Synonym page
- NCGC00091502-12· Synonym page
- NCGC00091502-16· Synonym page
- NCGC00254092-01· Synonym page
- NCGC00259976-01· Synonym page
- Coumarin 1000 microg/mL in Acetonitrile· Synonym page
- NCI60_041938· Synonym page
- SBI-0061760.P002· Synonym page
- DB-057267· Synonym page
- DB-261057· Synonym page
- Cinnamic acid, o-hydroxy-, .delta.-lactone· Synonym page
- Coumarin, Vetec(TM) reagent grade, >=99%· Synonym page
- NS00002381· Synonym page
- SW220278-1· Synonym page
- EN300-18115· Synonym page
- BIM-0061760.0001· Synonym page
- C05851· Synonym page
- D07751· Synonym page
- D81844· Synonym page
- AB00375898_11· Synonym page
- AB00375898_12· Synonym page
- AP-123/40186862· Synonym page
- Coumarin, primary pharmaceutical reference standard· Synonym page
- F239149· Synonym page
- Q111812· Synonym page
- CU-01000013121-2· Synonym page
- SR-01000721887-2· Synonym page
- SR-01000721887-3· Synonym page
- BRD-K23913458-001-02-5· Synonym page
- BRD-K23913458-001-13-2· Synonym page
- BRD-K23913458-001-19-9· Synonym page
- BRD-K23913458-001-20-7· Synonym page
- Coumarin, certified reference material, TraceCERT(R)· Synonym page
- Z57169486· Synonym page
- Coumarin, European Pharmacopoeia (EP) Reference Standard· Synonym page
- F3096-1712· Synonym page
- COUMARIN (CONSTITUENT OF CINNAMOMUM CASSIA BARK) [DSC]· Synonym page
- COUMARIN (CONSTITUENT OF CINNAMOMUM VERUM BARK) [DSC]· Synonym page
- D3E956C4-9541-4F57-9435-7D915C38E19E· Synonym page
- InChI=1/C9H6O2/c10-9-6-5-7-3-1-2-4-8(7)11-9/h1-6· Synonym page
- 2h-1-benzopyran-2-one;coumarin;2h-chromen-2-one;coumarin ;coumarin (2h-1-benzopyran-2-one) (chromen-2-one);2h-1-benzopyran-2-one coumarin 2h-chromen-2-one coumarin coumarin (2h-1-benzopyran-2-one) (chromen-2-one)· Synonym page
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Related Chemicals
1️⃣ Same formula
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2️⃣ Similar name
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