Molekula
Coumarin
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
Coumarin is a naturally occurring benzopyrone compound with a distinctive vanilla-like aroma, widely used in perfumery, flavoring, and as a fluorescent dye in scientific research. It is also employed in the synthesis of pharmaceuticals and as a reference standard in analytical chemistry. Coumarin has a CAS number of 91-64-5, a molecular formula of C9H6O2, and a molecular weight of 146.15 g/mol. It should be stored at ambient conditions. The signal word for safety is Danger. Molekula supplies Coumarin 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.
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White crystalline |
| Melting Point | 69.0℃ - 71.0℃ |
| Solubility | 1G CLEARLY DISSOLVED IN 8ML 90% ETHANOL |
| Assay | ≥99.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 162 °C |
| Transport Class | 6.1 |
| Packing Group | III |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Orthorhombic, rectangular plates |
| Odour | Pleasant, fragrant odor resembling that of vanilla beans. |
| Melting Point | 71 °C |
| Boiling Point | 301.71 °C |
| Solubility (other solvents) | Soluble in ethanol; very soluble in ether and chloroform |
| Vapour Pressure | 0.13 kPa at 106 °C |
| log P (octanol/water) | 1.39 |
Source: PubChem CID 323 (HSDB, ICSC)
Identification
| Property | Value |
|---|---|
| SKU | 90026321 |
| CAS Number | 91-64-5 |
| IUPAC Name | chromen-2-one |
| EC Number | 202-086-7 |
| Molecular Formula | C9H6O2 |
| Molecular Weight | 146.15 |
| Exact Mass | 146.0368 |
| SMILES | C1=CC=C2C(=C1)C=CC(=O)O2 |
| InChIKey | ZYGHJZDHTFUPRJ-UHFFFAOYSA-N |
| InChI | InChI=1S/C9H6O2/c10-9-6-5-7-3-1-2-4-8(7)11-9/h1-6H |
| PubChem CID | 323 |
| UN Number | UN2811 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29322005 |
| Tariff Code | 2932209015 |
Safety & GHS
-
Toxic
GHS06
-
Health Hazard
GHS07
Hazard statements
- H301 + H311 Toxic if swallowed or in contact with skin
- H317 May cause an allergic skin reaction
- H412 Harmful to aquatic life with long lasting effects
Precautionary statements
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
- P302+352 IF ON SKIN: Wash with soap and water
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Spanish.
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
- 1,2-Benzopyrone
- 2H-1-Benzopyran-2-one
- 2H-Chromen-2-one
- chromen-2-one
- cis-o-Coumarinic acid lactone
- Coumarine
- Coumarinic anhydride
- cumarin
- Rattex
- Tonka bean camphor
Frequently asked questions
What is coumarin primarily used for?
Coumarin is commonly used as a fragrance in perfumes, soaps, and cosmetics, as well as a flavoring agent in foods and beverages, and historically in incense and tobacco products.
What is the chemical formula and molecular weight of coumarin?
The chemical formula is **C9H6O2**, and the molecular weight is **146.15 g/mol**.
How should coumarin be stored?
Store coumarin in a tightly sealed container at **ambient temperature**, away from moisture and direct sunlight.
What grades of coumarin does Molekula supply?
Molekula supplies coumarin in **pharmaceutical, food-grade, and analytical/ACS-grade** purity levels, depending on application requirements.
Can Molekula supply coumarin in bulk quantities?
Yes, Molekula offers coumarin in bulk, with flexible packaging options (drums, bags, or custom solutions) for large-scale industrial or commercial needs.
What documentation is provided with a coumarin order?
Each order includes a **Certificate of Analysis (CoA)**, Material Safety Data Sheet (MSDS), and batch-specific documentation for traceability and compliance.
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.