| Product Identification | Back to Contents | 【Product Name】
4-Hydroxy-3-methoxybenzaldehyde | 【Synonyms】
4-Formyl-2-methoxyphenol
4-Hydroxy-3-methoxybenzaldehyde
p-Hydroxy-m-methoxybenzaldehyde
Rhovanil
Vanillaldehyde
Vanillic aldehyde | 【CAS】
121-33-5 | 【Formula】
C8H8O3 | 【Molecular Weight】
152.15 | 【EINECS】
204-465-2 | 【RTECS】
YW5775000 | 【RTECS Class】
Mutagen; Reproductive Effector; Natural Product | 【Merck】
12,10069 | 【Beilstein/Gmelin】
472792 | 【Beilstein Reference】
4-08-00-01763 |
| Physical and Chemical Properties | Back to Contents | 【Appearance】
White or very slightly yellow needles. | 【Solubility in water】
10 g/L | 【Melting Point】
82 | 【Boiling Point】
285 | 【Vapor Pressure】
0.0019 (25 C) | 【Density】
1.056 g/cm3 (20 C) | 【pKa/pKb】
7.78 (pKa) | 【Partition Coefficient】
1.37 | 【Heat Of Vaporization】
54.3 kJ/mol | 【Heat Of Combustion】
-1850 kJ/mol | 【Usage】
Flavoring agent in galenicals, in perfumery, reagent in analytical chemistry, pharmaceutic aid (flavor). | 【Vapor Density】
5.2 | 【Refractive Index】
1.555 |
| First Aid Measures | Back to Contents | 【Ingestion】
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Treat symptomatically and supportively. Get medical aid if irritation or symptoms occur. | 【Inhalation】
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid if cough or other symptoms appear. | 【Skin】
Get medical aid if irritation develops or persists. Wash clothing before reuse. Flush skin with plenty of soap and water. | 【Eyes】
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid. |
| Handling and Storage | Back to Contents | 【Storage】
Store in a cool, dry place. Store protected from moisture. Store protected from light. | 【Handling】
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Store protected from light. |
| Hazards Identification | Back to Contents | 【Ingestion】
May cause irritation of the digestive tract. | 【Inhalation】
No hazard expected in normal industrial use. Dust is irritating to the respiratory tract. | 【Skin】
Dust may cause mechanical irritation. May cause skin sensitization, an allergic reaction, which becomes evident upon re-exposure to this material. Low hazard for usual industrial handling. | 【Eyes】
Dust may cause mechanical irritation. Low hazard for normal industrial handling. | 【EC Risk Phrase】
R 22 | 【EC Safety Phrase】
S 22 36/37 |
| Exposure Controls/Personal Protection | Back to Contents | 【Personal Protection】
Eyes: Wear safety glasses and chemical goggles if splashing is possible. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure. | 【Respirators】
A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use. | 【Exposure limit(s)】
OSHA Permissible Exposure Limit (PEL): 15 mg/m3 total dust, 5 mg/m3 respirable fraction for nuisance dusts. | 【Poison Class】
4 |
| Fire Fighting Measures | Back to Contents | 【Flash Point】
118 | 【Autoignition】
> 400 | 【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, dry chemical, chemical foam, or alcohol-resistant foam. Use agent most appropriate to extinguish fire. | 【Upper exp. limit】
8.8 | 【Lower exp. limit】
1.2 | 【Fire Potential】
Flammability properties of some synthetic fragrant substances and intermediate products. |
| Accidental Release Measures | Back to Contents | 【Small spills/leaks】
Clean up spills immediately, using the appropriate protective equipment. Sweep up, then place into a suitable container for disposal. Provide ventilation. |
| Stability and Reactivity | Back to Contents | 【Stability】
Stable under normal temperatures and pressures. | 【Incompatibilities】
Strong oxidizing agents, strong bases, light, air, strong reducing agents, moisture, bromine, perchloric acid, potassium t-butoxide, t-chlorobenzene and sodium hydroxide, formic acid and thallium nitrate. | 【Decomposition】
Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide. |
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| Company Name: | J & K SCIENTIFIC LTD. |
| Tel: | 400-666-7788 +86-10-82848833 |
| Fax: | +86-10-82849933 |
| WebSite: | www.jkchemical.com |
| Company Name: | Meryer (Shanghai) Chemical Technology Co., Ltd. |
| Tel: | +86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-59487313(Beijing) |
| Fax: | +86-(0)21-61259102(Shanghai) +86-(0)755-86170066(ShenZhen) +86-(0)10-88580358(Beijing) |
| WebSite: | www.meryer.com |
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