(±)-Mellein

Name: (±)-Mellein
Brand: Vaqora Chemicals
SKU: VQ-051925

About (±)-Mellein

Listed under CAS 17397-85-2, (±)-Mellein is an ester available from Vaqora Chemicals. With the molecular formula C10H10O3, it has a molar mass of 178.18 g/mol. The IUPAC name is 8-hydroxy-3-methyl-3,4-dihydroisochromen-1-one. Alternative names: Ochracin and 3,4-Dihydro-8-hydroxy-3-methylisocoumarin.

Store in a tightly closed container in a cool, dry and well-ventilated place. It carries the GHS signal word “Warning” with 3 hazard statements. Review the Safety Data Sheet before use.

Key uses span organic synthesis and API synthesis. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

We offer (±)-Mellein in 100 mg, 250 mg, 1 g and 5 g packs with a batch-specific COA, and ship to customers worldwide. SDS and detailed specification sheets can be requested with your quotation. Custom pack sizes, bulk quantities and specific analytical data can be arranged on request.

Typical applications

Organic synthesis
API synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	(±)-Mellein
Catalogue No.	VQ-051925
CAS Number	17397-85-2
IUPAC name	8-hydroxy-3-methyl-3,4-dihydroisochromen-1-one
Molecular formula	C₁₀H₁₀O₃
Molecular weight	178.18 g/mol
Exact mass	178.063
InChIKey	KWILGNNWGSNMPA-UHFFFAOYSA-N
SMILES	CC1CC2=C(C(=CC=C2)O)C(=O)O1
PubChem CID	28516

Physical properties
Physical form	Other
LogP (XLogP3)	2.4
H-bond donors / acceptors	1 / 3
TPSA	46.5 Å²
Synonyms	Ochracin, 8-hydroxy-3-methyl-3,4-dihydro-1H-2-benzopyran-1-one, 3,4-Dihydro-8-hydroxy-3-methylisocoumarin, 8-hydroxy-3-methylisochroman-1-one, (S)-(+)-Ochracin, AO-2, 1H-2-Benzopyran-1-one, 3,4-dihydro-8-hydroxy-3-methyl-, 3,4-dihydro-8-hydroxy-3-methyl-1H-2-benzopyran-1-one, 8-Hydroxy-3-methyl-3,4-dihydro-1H-isochromen-1-one, 3,4-Dihydro-8-hydroxy-3-methyl-(1H)-2-benzopyran-1-one, Antibiotic AO-2

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of (±)-Mellein?

The CAS Registry Number of (±)-Mellein is 17397-85-2. It is also known as Ochracin, 8-hydroxy-3-methyl-3,4-dihydro-1H-2-benzopyran-1-one, 3,4-Dihydro-8-hydroxy-3-methylisocoumarin.

What is the molecular formula and molecular weight of (±)-Mellein?

(±)-Mellein has the molecular formula C10H10O3 and a molecular weight of 178.18 g/mol. Its IUPAC name is 8-hydroxy-3-methyl-3,4-dihydroisochromen-1-one.

Which grade and pack sizes of (±)-Mellein can I order?

We supply (±)-Mellein, in 100 mg, 250 mg, 1 g, 5 g packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with (±)-Mellein?

Yes. Every lot of (±)-Mellein is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can (±)-Mellein be shipped internationally?

Yes. (±)-Mellein is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.