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3,4-Dimethoxy-5-hydroxybenzaldehyde(29865-90-5)

3,4-Dimethoxy-5-hydroxybenzaldehyde(29865-90-5)
Product IdentificationBack to Contents
【Product Name】

3,4-Dimethoxy-5-hydroxybenzaldehyde
【Synonyms】

3,4-Dimethoxy-5-hydroxybenzaldehyde
5-Hydroxy-3,4-dimethoxybenzaldehyde
5-Hydroxyveratraldehyde
【CAS】

29865-90-5
【Formula】

C9H10O4
【Molecular Weight】

182.17
【Beilstein Reference】

4-08-00-02718
Physical and Chemical PropertiesBack to Contents
【Solubility in water】

5.5 g/L (25 C)
【Melting Point】

64 - 65
【Boiling Point】

314
【Vapor Pressure】

0.00026 (25 C)
【Density】

1.234 g/cm3 (20 C)
【pKa/pKb】

8.87 (pKa)
【Partition Coefficient】

1.13
【Heat Of Vaporization】

57.73 kJ/mol
First Aid MeasuresBack to Contents
【Ingestion】

If swallowed, wash out mouth with water provided person is conscious. Call a physician.
【Inhalation】

If inhaled, remove to fresh air. If not breathing give artificial respiration. If breathing is difficult, give oxygen.
【Skin】

In case of contact, immediately wash skin with soap and copious amounts of water. Remove contaminated clothing and shoes. Call a physician.
【Eyes】

In case of contact with eyes, flush with copious amounts of water for at least 15 minutes. Assure adequate flushing by separating the eyelids with fingers. Call a physician.
Handling and StorageBack to Contents
【Storage】

Keep tightly closed. Store in a cool dry place.
Hazards IdentificationBack to Contents
【Inhalation】

Material is irritating to mucous membranes and upper respiratory tract.
【Hazards】

Emits toxic fumes under fire conditions.
【EC Risk Phrase】

36/37/38
【EC Safety Phrase】

26 37/39
Exposure Controls/Personal ProtectionBack to Contents
【Personal Protection】

Compatible chemical-resistant gloves. Chemical safety goggles. Protective clothing.
【Respirators】

Use respirators and components tested and approved under appropriate government standards such as NIOSH (US) or CEN (EU). Where risk assessment shows air-purifying respirators are appropriate use a full-face respirator with multi-purpose combination (US) or type ABEK (EN 14387) respirator cartridges as a backup to engineering controls. If the respirator is the sole means of protection, use a full-face supplied air respirator.
【Exposure Effects】

Causes eye and skin irritation. May be harmful by inhalation, ingestion, or skin absorption.
Fire Fighting MeasuresBack to Contents
【Flash Point】

133
【Fire Fighting】

Extinguish with water spray, carbon dioxide, dry chemical powder or appropriate foam. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.
Accidental Release MeasuresBack to Contents
【Small spills/leaks】

Sweep up, place in a bag and hold for waste disposal. Avoid raising dust. Ventilate area and wash spill site after material pickup is complete.
Stability and ReactivityBack to Contents
【Incompatibilities】

Strong oxidizing agents, Strong bases.
【Decomposition】

Oxides of carbon.
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