Name | pyrocatechol monoethyl ether |
Synonyms | guaethol 2-Ethoxyphenol 2-ethoxy-pheno Tamsulosin Impurity 3 2-Ethoxyphenol (Guaethol) Pyrocatechol monoethyl ethe 0-hydroxy phenyl ethyl ether pyrocatechol monoethyl ether Ethylvanillin DesforMyl IMpurity PYROCATECHOL MONOETHYL ETHER FOR SYNTHES Pyrocatechol monoethyl ether for synthesis Catechol Monoethyl EtherGuetholPyrocatechol Monoethyl Ether |
CAS | 94-71-3 |
EINECS | 202-358-5 |
InChI | InChI=1/C8H10O2/c1-2-10-8-6-4-3-5-7(8)9/h3-6,9H,2H2,1H3 |
Molecular Formula | C8H10O2 |
Molar Mass | 138.16 |
Density | 1.09 g/mL at 25 °C (lit.) |
Melting Point | 20-25 °C (lit.) |
Boling Point | 216-217 °C (lit.) |
Flash Point | 91 °C |
Water Solubility | 8.414g/L(24.99 ºC) |
Solubility | 9g/l |
Vapor Presure | 1 hPa (45 °C) |
Appearance | Liquid |
Color | Clear colorless to yellow |
BRN | 1100453 |
pKa | pK1:10.109 (25°C) |
Storage Condition | Store below +30°C. |
Refractive Index | n20/D 1.529(lit.) |
Physical and Chemical Properties | O-ethoxyphenol, also known as catechol ether, 1-ethoxy-2-hydroxybenzene, is colorless to light yellow liquid with aroma. Relative molecular mass 138.17. Relative density 1.090. Melting point 28~29 ℃. Boiling point 216~217 ℃. Flash point 91 ℃. 1.5290 refractive index. |
Use | It is a raw material for the synthesis of flavor ethyl vanillin, and can also be used as a pharmaceutical raw material |
Hazard Symbols | Xn - Harmful |
Risk Codes | R22 - Harmful if swallowed R37/38 - Irritating to respiratory system and skin. R41 - Risk of serious damage to eyes |
Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S37/39 - Wear suitable gloves and eye/face protection |
WGK Germany | 3 |
TSCA | Yes |
HS Code | 29095090 |
Toxicity | LD50 orally in Rabbit: > 2000 mg/kg |