Dihydropyran

Name: Dihydropyran
Brand: Vaqora Chemicals
SKU: VQ-010288

About Dihydropyran

Listed under CAS 110-87-2, Dihydropyran is an ether building block available from Vaqora Chemicals. With the molecular formula C5H8O, it has a molar mass of 84.12 g/mol. Systematically, it is named 3,4-dihydro-2H-pyran. Common synonyms include 2,3-Dihydropyran and 3,4-Dihydro-1,2-pyran.

Store in a tightly closed container in a cool, dry and well-ventilated place. Under GHS it is labelled “Danger”, so handle it with suitable PPE and consult the SDS.

It is commonly used for organic synthesis and API synthesis. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, Dihydropyran is dispatched with a Certificate of Analysis (COA) to destinations worldwide. A Safety Data Sheet (SDS) and technical specifications are available on request. Larger quantities and custom packaging are available. Request a quote for pricing and lead time.

Typical applications

Organic synthesis
API synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	Dihydropyran
Catalogue No.	VQ-010288
CAS Number	110-87-2
IUPAC name	3,4-dihydro-2H-pyran
Molecular formula	C₅H₈O
Molecular weight	84.12 g/mol
Exact mass	84.0575
Grade	Reference Standard
InChIKey	BUDQDWGNQVEFAC-UHFFFAOYSA-N
SMILES	C1CC=COC1
PubChem CID	8080

Physical properties
Physical form	Other
LogP (XLogP3)	0.7
H-bond donors / acceptors	0 / 1
TPSA	9.2 Å²
Synonyms	2,3-Dihydropyran, 3,4-Dihydro-1,2-pyran, Dihydro-pyran, 2,3-Dihydro-4H-pyran, 2H-3,4-Dihydropyran, 5,6-Dihydro-4H-pyran, Dihydro-2H-pyran, DHP, 3,4-Dihydropyran, 2H-Pyran, 3,4-dihydro-, delta2-Dihydropyran, Pyran, dihydro-

Safety & hazard information (GHS)

Flammable

Harmful / irritant

Signal word: Danger

Hazard statements

H225Highly flammable liquid and vapor
H315Causes skin irritation
H317May cause an allergic skin reaction
H319Causes serious eye irritation

Precautionary statements: P210, P233, P240, P241, P242, P243, P261, P264, P264 + P265, P272, P280, P302 + P352, P303 + P361 + P353, P305 + P351 + P338, P321, P332 + P317, P333 + P317, P337 + P317, P362 + P364, P370 + P378, P403 + P235, 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

Other grades of CAS 110-87-2

3,4-Dihydro-2H-pyran, 99%+

CAS: 110-87-2
Formula: C₅H₈O
MW: 84.12 g/mol

VQ-000804

Frequently asked questions

What is the CAS number of Dihydropyran?

The CAS Registry Number of Dihydropyran is 110-87-2. It is also known as 2,3-Dihydropyran, 3,4-Dihydro-1,2-pyran, Dihydro-pyran.

What is the molecular formula and molecular weight of Dihydropyran?

Dihydropyran has the molecular formula C5H8O and a molecular weight of 84.12 g/mol. Its IUPAC name is 3,4-dihydro-2H-pyran.

Which grade and pack sizes of Dihydropyran can I order?

We supply Dihydropyran in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Dihydropyran?

Yes. Every lot of Dihydropyran 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 Dihydropyran be shipped internationally?

Yes. Dihydropyran 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.