3,4-Dimethoxybenzaldehyde

  • Veratraldehyde
Formula
3,4-(CH3O)2C6H3CHO
Structure
Description
Needles or chunky light peach powder. Has an odor of vanilla beans.

Registry Numbers and Inventories.
CAS
120-14-9
EC (EINECS/ELINCS)
204-373-2
EC Class
harmful, irritant
R 22 36/37/38
S 26 36/37/39
RTECS
YX5088000
RTECS class
Primary Irritant
UN (DOT)
1988
Merck
12,10084
Beilstein/Gmelin
473899
Beilstein Reference
4-08-00-01765
Swiss Giftliste 1
G-130193
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C9H10O3
Formula mass
166.18
Melting point, °C
40 - 43
Boiling point, °C
281
Vapor pressure, mmHg
0.004 (25 C)
Solubility in water
Slightly soluble
Partition coefficient, pKow
1.61
Heat of fusion
17.2 kJ/mol
Heat of vaporization
49.0 kJ/mol
Heat of combustion
-4555 kJ/mol

Hazards and Protection.
Storage
Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances.
Handling
Wash thoroughly after handling. Use only in a well ventilated area. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.
Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks
Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions.
Disposal code
3
Stability
Stable under normal temperatures and pressures. Solutions are oxidized to veratic acid under the influence of light.
Incompatibilities
Oxidizing agents, strong bases.
Decomposition
Carbon monoxide, carbon dioxide.

Fire.
Flash Point,°C
110
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. To extinguish fire, use water fog, dry chemical, carbon dioxide, or regular foam.
Fire potential
This compound is probably combustible.
Hazards
Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion and poison hazard indoors, outdoors or in sewers.
Combustion products
Fire will produce irritating, corrosive and/or toxic gases.

Health.
Poison_Class
4
Exposure effects
   Ingestion
Causes gastrointestinal irritation with nausea, vomiting and diarrhea. May be harmful if swallowed.
   Inhalation
Inhalation of dust may cause respiratory tract irritation.
   Skin
Causes skin irritation.
   Eyes
May cause eye irritation.

First aid
 
   Ingestion
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
   Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
   Skin
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Transport.
UN number
1988
Response guide
Hazard class
3
Packing Group
I; II; III
 
HS Code
2912 49 00