PHTHALIDE FOR SYNTHESIS 250 G
Phthalide
CAS: 87-41-2
Molecular Formula: C8H6O2
PHTHALIDE FOR SYNTHESIS 250 G - Names and Identifiers
| Name | Phthalide |
| Synonyms | Phthalide Phthalanone 1-Isobenzofuranone 3H-2-Benzofuran-1-one 1(3H)-Isobenzofuranone 2-benzofuran-1(3H)-one Isobenzofuran-1(3H)-one Phthalide,1-Isobenzofuranone PHTHALIDE FOR SYNTHESIS 100 G PHTHALIDE FOR SYNTHESIS 250 G 1,3-Dihydroisobenzofuran-1-one O-Hydroxymethylbenzoic Acid Lactone |
| CAS | 87-41-2 |
| EINECS | 201-744-0 |
| InChI | InChI=1/C8H6O2/c9-8-7-4-2-1-3-6(7)5-10-8/h1-4H,5H2 |
| InChIKey | WNZQDUSMALZDQF-UHFFFAOYSA-N |
PHTHALIDE FOR SYNTHESIS 250 G - Physico-chemical Properties
| Molecular Formula | C8H6O2 |
| Molar Mass | 134.13 |
| Density | 1.1 |
| Melting Point | 71-74 °C (lit.) |
| Boling Point | 290 °C (lit.) |
| Flash Point | 152 °C |
| Water Solubility | sparingly soluble |
| Solubility | Soluble in alcohol, ether and hot water, slightly soluble in cold water |
| Vapor Presure | 0.00213mmHg at 25°C |
| Appearance | White crystal |
| Color | White to light beige |
| BRN | 114632 |
| Storage Condition | Keep in dark place,Inert atmosphere,Room temperature |
| Refractive Index | 1.5360 (estimate) |
| MDL | MFCD00005906 |
| Physical and Chemical Properties | Melting point 70-73°C boiling point 290°C flash point 152°C water-soluble sparingly soluble |
| Use | Used as an intermediate in organic synthesis, for the synthesis of doxepin drugs and dyes to reduce Brown BR, etc |
PHTHALIDE FOR SYNTHESIS 250 G - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | R36 - Irritating to the eyes R36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. S24/25 - Avoid contact with skin and eyes. S37/39 - Wear suitable gloves and eye/face protection |
| WGK Germany | 3 |
| RTECS | TI3520000 |
| TSCA | Yes |
| HS Code | 29322980 |
PHTHALIDE FOR SYNTHESIS 250 G - Reference Information
| FEMA | 4195 | PHTHALIDE |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Introduction | phthalide is a white solid, soluble in alcohol, ether and hot water, and extremely slightly soluble in cold water. It can be used as an intermediate for fine chemicals; As an intermediate for organic synthesis, for the synthesis of doxepin drugs and dyes to reduce Brown BR, etc. |
| Use | phthalide is an intermediate of the fungicide phenoxy ester. use as an intermediate in fine chemicals. For the production of dye intermediates 1, 4-dichloroanthraquinone, 1-chloroanthraquinone, anticoagulant phenylindanedione, bactericide tetrachlorobenzenephthalide, anti-Anxiety drug polygraph equality. used as an intermediate in organic synthesis, for the synthesis of doxepin drugs and dyes such as reducing Brown br |
| production method | is obtained by reduction of phthalimide. Add zinc powder into sodium hydroxide solution, cool to below 5 ℃, add copper sulfate solution, slowly add phthalimide under stirring, control temperature not to exceed 8 ℃, incubation was carried out at 5-8 °c for 1.5h. Ammonia 3H, cooling, filtration, filtrate neutralized with concentrated hydrochloric acid to pH = 1, heating and boiling for 1H, stirring cooling crystallization, filtration, washing to neutral, low temperature drying, phthalide with a content of 95% was obtained in a yield of 80%. The preparation method is to use phthalimide in sodium hydroxide solution, with a small amount of copper activated zinc powder for reduction reaction, reaction temperature 8 deg C to obtain the product. |
Last Update：2024-04-09 21:54:55
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