4-Methoxybenzaldehyde
[CAS# 123-11-5]

Identification

• Classification: Pharmaceutical intermediate >> Heterocyclic compound intermediate >> Pyridine compound >> Cyanopyridine
• Name: 4-Methoxybenzaldehyde
• Synonyms: Anisic aldehyde; p-Anisic aldehyde; p-Methoxybenzaldehyde; Anisaldehyde
• Molecular Formula: C₈H₈O₂
• Molecular Weight: 136.15
• CAS Registry Number: 123-11-5
• EC Number: 204-602-6
• FEMA: 2670

Properties

• Density: 1.121
• Melting point: -1 ºC
• Boiling point: 248-249 ºC
• Refractive index: 1.571-1.574
• Flash point: 116 ºC

Safety Data

• Hazard Symbols: Xn
• Risk Codes: R22

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Acute toxicity	Acute Tox.	4	H302
Chronic hazardous to the aquatic environment	Aquatic Chronic	3	H412
Skin irritation	Skin Irrit.	2	H315
Eye irritation	Eye Irrit.	2	H319
Specific target organ toxicity - single exposure	STOT SE	3	H335
Skin sensitization	Skin Sens.	1	H317
Eye irritation	Eye Irrit.	2A	H319
Skin corrosion	Skin Corr.	1	H314
Germ cell mutagenicity	Muta.	1A	H340
Reproductive toxicity	Repr.	1B	H360
Specific target organ toxicity - repeated exposure	STOT RE	2	H373
Specific target organ toxicity - single exposure	STOT SE	3	H336
Specific target organ toxicity - repeated exposure	STOT RE	1	H372
Serious eye damage	Eye Dam.	1	H318
Flammable liquids	Flam. Liq.	2	H226