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Specialty Additives Available — Bulk Only

Dihydrocoumarin (3,4-Dihydrocoumarin, Hydrocoumarin)

CAS 119-84-6 · Formula C9H8O2 · MW 148.16 g/mol

A coumarin-derived lactone valued for its sweet, new-mown-hay scent in fine fragrance and flavor work. It is used as a fragrance ingredient in perfumery and as a flavoring agent, and holds GRAS status in the U.S., appearing in woodruff- and caramel-type flavor compositions.

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HS Code
2932.20
At a Glance
Material Family
Specialty Additives
Record Type
Pure compound
Functional Roles
INCI Name
DIHYDROCOUMARIN
CosIng Functions
FRAGRANCEPERFUMING
Industries Served
Beauty & Personal Care
Applications & Use Cases
  • ▸ Fragrance ingredient: Hay/coumarin note in perfume compositions.
  • ▸ Flavoring agent: Sweet, caramel-like flavor (GRAS, U.S.).
  • ▸ Woodruff flavors: Component of woodruff-type flavor blends.
Physical Properties
Melting Point
25 °C
Boiling Point
272 °C at 760 mmHg
Density
1.169 at 18 °C
Solubility
< 1 mg/mL at 20 °C
Vapor Pressure
13.4 mmHg at 25 °C; 19.5 mmHg at 42 °C; 27.4 mmHg at 63 °C
Flash Point
130 °C
Safety & Handling
Full SDS available on request

A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.

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HS / Tariff Classification
Harmonized System (HS) Code — 6-digit international heading
2932 . 20
Chapter 29
Organic chemicals
Heading 29.32
Internationally harmonized (WCO HS)
Subheading 2932.20
6-digit international code — national tariff line adds further digits
Chemical Identity
CAS Number
119-84-6
Molecular Formula
C9H8O2
Molecular Weight
148.16 g/mol
IUPAC Name
3,4-dihydrochromen-2-one
INCI Name
DIHYDROCOUMARIN
PubChem CID
660
InChI Key
VMUXSMXIQBNMGZ-UHFFFAOYSA-N
Synonyms & Trade Names
dihydrocoumarin 3,4-dihydrocoumarin hydrocoumarin Benzodihydropyrone melilotin 2-chromanone 1,2-benzodihydropyrone melilotic lactone Melilotine 2H-1-Benzopyran-2-one, 3,4-dihydro- Oxochroman Chroman, 2-oxo- Dihydrobenzopyrone Usaf do-12 Coumarin, 3,4-dihydro- Meliotine 2-Hydroxydihydrocinnamic acid lactone NCI-C55890 3,4-dihydrochromen-2-one
Full Description

Dihydrocoumarin (CAS 119-84-6) is a benzofused lactone with a sweet, hay-like, coumarin-type odor. It is used as a fragrance ingredient in perfumery and as a flavoring agent, and holds GRAS status in the U.S., appearing in woodruff- and caramel-type flavor compositions.

Frequently Asked Questions

What is 1,2-benzodihydropyrone (dihydrocoumarin) used for?

Dihydrocoumarin (CAS 119-84-6) is a benzofused lactone with a sweet, hay-like, coumarin-type odor. It is used as a fragrance ingredient in perfumery and as a flavoring agent, including in woodruff- and caramel-type compositions. It holds GRAS status in the U.S. for flavor use.

What does dihydrocoumarin smell like?

It carries a sweet, hay-like coumarin-type odor and contributes caramel- and woodruff-type notes. This profile is why it is used in perfume compositions and flavor blends.

What is the chemical formula and CAS number?

The molecular formula is C9H8O2 and the CAS number is 119-84-6. It is a benzodihydropyranone (lactone) classified as a specialty additive.

Is dihydrocoumarin the same as coumarin?

No. Dihydrocoumarin is the dihydro (saturated lactone-ring) analog of coumarin and is a distinct compound with its own CAS number, 119-84-6. They share a related coumarin-type odor character but are not interchangeable; specify by CAS when ordering.

How is dihydrocoumarin supplied and shipped in bulk?

It is classified under HS 2932.20 (lactones) and supplied with a CoA and SDS. Submit a bulk RFQ with your target volume and packaging (drums/totes/IBCs) for current pricing and lead time.

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Disclaimer. Information on this page — including properties, identifiers, hazard, transport (DOT/UN) and tariff (HS) classifications, and applications — is provided for general reference and is compiled from authoritative public sources (e.g. PubChem/ECHA, 49 CFR 172.101, the Harmonized Tariff Schedule). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot purchased governs. Products are sold for industrial and professional use only. Nothing here is a medical, health, or efficacy claim or advice. Always consult the current Safety Data Sheet (SDS) before handling, storage, transport or disposal, and confirm regulatory status, classification and suitability for your application and jurisdiction. Hazard, transport and tariff classifications must be verified for your specific shipment. RawSource makes no warranty, express or implied, and assumes no liability for use of this information. Trademarks. Third-party trademarks and brand names are the property of their respective owners; any reference is nominative — used only to identify a comparable product — and does not imply affiliation with, sponsorship by, or endorsement by the trademark owner.
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