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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 15836633Generated: October 25, 2026

2-(5,6-dihydro-2H-pyran-3-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

2-(5,6-Dihydro-2H-pyran-3-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane · 3,6-dihydropyran-5-boronic ester · 5,6-Dihydro-2H-pyran-3-boronic Acid Pinacol Ester · (5,6-DIHYDRO-2H-PYRAN-3-YL)BORONIC ACID PINACOL ESTER · 2-(3,6-dihydro-2H-pyran-5-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane · 5-(4,4,5,5-Tetramethyl-[1,3,2]dioxaborolan-2-yl)-3,6-dihydro-2H-pyran · 2H-Pyran, 3,6-dihydro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)- · 2-(5,6-Dihydro-2H-pyran-3-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane - [D22318]

https://huagongshe.com/en/chemical/15836633

2-(5,6-dihydro-2H-pyran-3-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane molecular structure

Identifiers & Physical Properties

CAS No.212127-81-6
Molecular formulaC11H19BO3
Average molar mass210.08 g/mol
Monoisotopic mass210.1427246 g/mol
SMILESCC1(C)OB(C2=CCCOC2)OC1(C)C
InChIKeyABXRLUFQGNZBME-UHFFFAOYSA-N
PubChem CID15836633
EC No.827-656-8
DTXSIDDTXSID30578747

Chemical & Physical Properties

Topological polar surface area27.7
Hydrogen bond donors0
Hydrogen bond acceptors3
Rotatable bonds1
Heavy atoms15
Formal charge0
Complexity268
Boiling point238.6±50.0 °C(Predicted)
Density1.01±0.1 g/cm3(Predicted)
Storage conditionsStorage temp. 2-8°C
AppearanceColorless to light yellow Liquid
GHS pictogramGHS07
Signal wordWarning
GHS hazard statementsH319-H315-H302-H335
GHS precautionary statementsP264-P280-P302+P352-P321-P332+P313-P362-P264-P280-P305+P351+P338-P337+P313P-P264-P270-P301+P312-P330-P501

Safety & Regulations

GHS classificationWarningH302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]H335 (100%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposureRespiratory tract irritation]P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P319, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)The GHS information provided by 1 company from 1 notification to the ECHA C&L Inventory.
Hazard Classes and CategoriesAcute Tox. 4 (100%)Skin Irrit. 2 (100%)Eye Irrit. 2A (100%)STOT SE 3 (100%)
Signal wordWarning
GHS pictogramGHS07
GHS hazard statementsH319-H315-H302-H335
GHS precautionary statementsP264-P280-P302+P352-P321-P332+P313-P362-P264-P280-P305+P351+P338-P337+P313P-P264-P270-P301+P312-P330-P501