4-Oxotetrahydro-2H-pyran-2-carboxylic acid
[CAS# 5270-59-7]

Identification

• Name: 4-Oxotetrahydro-2H-pyran-2-carboxylic acid
• Molecular Formula: C₆H₈O₄
• Molecular Weight: 144.13
• CAS Registry Number: 5270-59-7
• EC Number: 849-768-6
• SMILES: C1COC(CC1=O)C(=O)O

Properties

• Density: 1.4±0.1 g/cm³, Calc.^*
• Index of Refraction: 1.493, Calc.^*
• Melting Point: 118-120 °C
• Boiling Point: 338.6±37.0 °C (760 mmHg), Calc.^*
• Flash Point: 149.4±20.0 °C, Calc.^*

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software.

Safety Data

• Hazard Symbols: GHS07 Warning
• Risk Statements: H302-H315-H319-H335
• Safety Statements: P261-P264-P270-P271-P280-P301+P312-P302+P352-P304+P340-P305+P351+P338-P312-P330-P332+P313-P337+P313-P362-P403+P233-P405-P501

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Skin irritation	Skin Irrit.	2	H315
Acute toxicity	Acute Tox.	4	H302
Specific target organ toxicity - single exposure	STOT SE	3	H335
Eye irritation	Eye Irrit.	2A	H319