# Chromane

> Mediated Wiki article. Canonical URL: https://mediated.wiki/source/Chromane
> Markdown URL: https://mediated.wiki/source/Chromane.md
> Source: https://en.wikipedia.org/wiki/Chromane
> Source revision: 1209633854
> License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/)

{{Chembox
| ImageFile = Chromane.svg
| ImageSize = 200px
| PIN = 3,4-Dihydro-2''H''-1-benzopyran
| OtherNames = Chroman; Benzodihydropyran; Benzoxane
|Section1={{Chembox Identifiers
| CASNo = 493-08-3
| CASNo_Ref = {{Cascite|correct|CAS}}
| Beilstein = 116150
| ChEBI = 33224
| ChemSpiderID = 120093
| EC_number = 874-955-4
| Gmelin =  122981
| UNII_Ref = {{fdacite|correct|FDA}}
| UNII = EJ8R7LY9PK
| PubChem = 136319
| SMILES = C1CC2=CC=CC=C2OC1
| InChI = 1/C9H10O/c1-2-6-9-8(4-1)5-3-7-10-9/h1-2,4,6H,3,5,7H2
| InChIKey = VZWXIQHBIQLMPN-UHFFFAOYAB
| StdInChI = 1S/C9H10O/c1-2-6-9-8(4-1)5-3-7-10-9/h1-2,4,6H,3,5,7H2
| StdInChIKey = VZWXIQHBIQLMPN-UHFFFAOYSA-N
  }}
|Section2={{Chembox Properties
| C=9 | H=10 | O=1
| Appearance = 
| Density = 
| MeltingPt = 
| BoilingPt = 
| Solubility =
  }}
|Section3={{Chembox Hazards
| GHS_ref=<ref>{{cite web |title=Chromane |url=https://pubchem.ncbi.nlm.nih.gov/compound/136319#section=Safety-and-Hazards |website=pubchem.ncbi.nlm.nih.gov |access-date=22 February 2024 |language=en}}</ref>
| GHSPictograms = {{GHS02}}{{GHS07}}
| GHSSignalWord = Warning
| HPhrases = {{H-phrases|226|302|315|319|335}}
| PPhrases = {{P-phrases|210|233|240|241|242|243|261|264|264+265|270|271|280|301+317|302+352|303+361+353|304+340|305+351+338|319|321|330|332+317|337+317|362+364|370+378|403+233|403+235|405|501}}
| MainHazards = 
| FlashPt = 
| AutoignitionPt =
  }}
|Section8={{Chembox Related
|OtherCompounds = [Tetrahydroquinoline](/source/Tetrahydroquinoline), [Tetralin](/source/Tetralin), [Chromene](/source/Chromene), [Coumaran](/source/2%2C3-Dihydrobenzofuran)
 }}
}}

'''Chromane''' ('''benzodihydropyran''') is a [heterocyclic](/source/heterocyclic) [chemical compound](/source/chemical_compound) with the chemical formula C<sub>9</sub>H<sub>10</sub>O.<ref>{{cite journal |last1=Rindfusz |first1=R. E. |title=Syntheses of Chromanes and Coumaranes |journal=Journal of the American Chemical Society |date=April 1919 |volume=41 |issue=4 |pages=665–670 |doi=10.1021/ja01461a015}}</ref>  Chromane is a structural feature of more complex compounds including [E vitamins](/source/Vitamin_E) ([tocopherol](/source/tocopherol)s and [tocotrienol](/source/tocotrienol)s), [Dianin's compound](/source/Dianin's_compound), and the [pharmaceutical drug](/source/pharmaceutical_drug)s [troglitazone](/source/troglitazone), [ormeloxifene](/source/ormeloxifene), and [nebivolol](/source/nebivolol).  Such compounds are sometimes described as chromans.

==See also==
* [Chromene](/source/benzopyran) (benzopyran)

==References==
{{Reflist}}

==External links==
* {{commonscat inline|Benzodihydropyrans|lcfirst=yes}}
* {{wiktionary inline}}

{{heterocyclic-stub}}

Category:Chromanes

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Adapted from the Wikipedia article [Chromane](https://en.wikipedia.org/wiki/Chromane) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Chromane?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.