Molekula
Xanthene
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Xanthene (9H-xanthene) is an oxygen heterocycle, dibenzo-4H-pyran, in which two benzene rings are fused to a central pyran ring; because it contains a ring oxygen, it is not a hydrocarbon. It is the parent ring system that gives the xanthene dye class its name, and it serves as an intermediate in organic synthesis, for example in the preparation of xanthone by oxidation and of xanthene-9-carboxylic acid. This chemical has a CAS number of 92-83-1, with the molecular formula C13H10O and a molecular weight of 182.22. It is stored at ambient conditions but carries a Danger signal word due to its hazardous properties. Molekula supplies Xanthene from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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Specifications
Specifications available on request — see Documents below or contact our sales team.
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 100 °C |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Vapour Pressure | 0.000847 mmHg |
Source: PubChem CID 7107 (Haz-Map)
Identification
| Property | Value |
|---|---|
| SKU | 24466273 |
| CAS Number | 92-83-1 |
| IUPAC Name | 9H-xanthene |
| EC Number | 202-194-4 |
| Molecular Formula | C13H10O |
| Molecular Weight | 182.22 |
| Exact Mass | 182.0732 |
| SMILES | C1C2=CC=CC=C2OC3=CC=CC=C31 |
| InChIKey | GJCOSYZMQJWQCA-UHFFFAOYSA-N |
| InChI | InChI=1S/C13H10O/c1-3-7-12-10(5-1)9-11-6-2-4-8-13(11)14-12/h1-8H,9H2 |
| PubChem CID | 7107 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29329970 |
| Tariff Code | 2932990090 |
Safety & GHS
-
Health Hazard
GHS07
-
Serious Health Hazard
GHS08
Hazard statements
- H317 May cause an allergic skin reaction
- H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+350 IF ON SKIN: Gently wash with soap and water
- P314 Get medical advice/attention if you feel unwell
Documents
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- 10H9Oxaanthracene
- 12,12-dimethyl-12H-benzo(a)xanthene
- 9-oxa-9,10-dihydroanthracene
- 9H-Xanthene
- Dibenzo[a,e]pyran
- Dibenzopyran, tricyclic
- GJCOSYZMQJWQCA-UHFFFAOYSA-N
- Xanthan
Frequently asked questions
What is xanthene primarily used for?
Xanthene (CAS 92-83-1) is used as an intermediate in organic synthesis, for example in the preparation of xanthone by oxidation and of xanthene-9-carboxylic acid. It is the parent ring system that names the xanthene dye class, but it is not the precursor of dyes such as fluorescein or rhodamines, which are made from resorcinol or m-aminophenols and phthalic anhydride.
What is the molecular formula and molecular weight of xanthene?
The molecular formula of xanthene is C13H10O, and its molecular weight is 182.22 g/mol.
How should xanthene be stored?
Xanthene should be stored at ambient temperature in a cool, dry place, away from direct sunlight and incompatible substances.
What grades or purities of xanthene does Molekula supply?
Molekula supplies xanthene in technical and reagent-grade purities, typically ≥98% purity unless otherwise specified.
Can Molekula supply xanthene in bulk quantities?
Yes, Molekula can supply xanthene in bulk quantities upon request, depending on availability and customer requirements.
What documentation comes with an order of xanthene?
Each order includes a Certificate of Analysis (CoA), Safety Data Sheet (SDS), and a Material Safety Information Sheet (MSDS) for compliance and handling.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.