Molekula
7-Hydroxycoumarin (Umbelliferone)
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
7-Hydroxycoumarin, also called umbelliferone, is a naturally occurring benzopyrone compound widely used as a fluorescent dye, UV absorber, and intermediate in organic synthesis, particularly in pharmaceuticals and agrochemicals. It appears as a white to pale yellow crystalline powder with a faint odor. This chemical has CAS number 93-35-6, a molecular formula of C9H6O3, and a molecular weight of 162.14 g/mol. It is stable under ambient storage conditions but requires careful handling as indicated by its warning signal word. Molekula supplies 7-Hydroxycoumarin 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
On backorder — expected to ship by 24 November 2026
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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100 g — £85.50 per pack ex VAT · £102.60 inc. VAT
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 | Pale grey to pale beige powder |
| Melting Point | 187.0 - 191.0℃ |
| Storage Temperature | +20℃ |
| Purity | ≥98.0% (HPLC) |
| Residue on Ignition | ≤0.5% |
| Moisture | ≤0.5% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Melting Point | 230 - 232 °C |
Source: PubChem CID 5281426 (Human Metabolome Database (HMDB))
Identification
| Property | Value |
|---|---|
| SKU | 12457908 |
| CAS Number | 93-35-6 |
| IUPAC Name | 7-hydroxychromen-2-one |
| EC Number | 202-240-3 |
| Molecular Formula | C9H6O3 |
| Molecular Weight | 162.14 |
| Exact Mass | 162.0317 |
| SMILES | C1=CC(=CC2=C1C=CC(=O)O2)O |
| InChIKey | ORHBXUUXSCNDEV-UHFFFAOYSA-N |
| InChI | InChI=1S/C9H6O3/c10-7-3-1-6-2-4-9(11)12-8(6)5-7/h1-5,10H |
| PubChem CID | 5281426 |
| REACH Code | Y113 |
| HTS Code | 2932204500 |
| Tariff Code | 2932209090 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
We haven't published a Safety Data Sheet for this product yet. Ask us and we'll send you one.
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.
Quality certificates
Molekula Group is certified to ISO 9001:2015 (quality) and ISO 14001:2015 (environmental management), audited by a UKAS-accredited body. Both certificates are valid to 17 May 2028.
Synonyms
- 2H-1-Benzopyran-2-one, 7-hydroxy-
- 7-Hydroxy-2H-chromen-2-one
- 7-hydroxychromen-2-one
- 7-hydroxycoumarin
- Hydrangin
- Hydrangine
- Skimmetin
- Skimmetine
- Umbelliferon
- Umbelliferone
Frequently asked questions
What is 7-Hydroxycoumarin (Umbelliferone) commonly used for?
7-Hydroxycoumarin is primarily used as a fluorescent dye in biological research, UV detection (e.g., TLC plates), and as a precursor in the synthesis of pharmaceuticals and agrochemicals.
What is the molecular formula and molecular weight of 7-Hydroxycoumarin?
The molecular formula is **C₉H₆O₃**, and the molecular weight is **162.14 g/mol**.
How should 7-Hydroxycoumarin be stored?
Store in a tightly sealed container at **ambient temperature**, away from light and moisture to prevent degradation.
What purity grades of 7-Hydroxycoumarin does Molekula supply?
Molekula supplies **analytical grade (≥98% purity)** and **synthetic grade (≥97% purity)** for research and industrial applications.
Can Molekula supply 7-Hydroxycoumarin in bulk quantities?
Yes, we offer **bulk packaging options** (e.g., 1 kg, 5 kg, and larger quantities) upon request, subject to availability and approval.
What documentation is provided with an order of 7-Hydroxycoumarin?
Each order includes a **Certificate of Analysis (CoA)**, **Material Safety Data Sheet (MSDS)**, and **batch-specific documentation** for traceability.
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.