Chrysanthemic acid
2,2,3,3-tetramethylcyclopropanecarboxylic acid
CAS: 15641-58-4
Molecular Formula: C8H14O2
Chrysanthemic acid - Names and Identifiers
| Name | 2,2,3,3-tetramethylcyclopropanecarboxylic acid |
| Synonyms | Chrysanthemum Acid Chrysanthemic acid 3-Carboxy-1,1,2,2-tetramethylcyclopropane 2,2,3,3-Tetramethylcyclopropylcarboxylic acid 2,2,3,3-tetramethylcyclopropanecarboxylic acid 2,2,3,3-tetramethylcyclopropan carboxylic acid 2,2,3,3-Tetramethylcyclopropane-1-carboxylic acid 2,2,3,3-Tetramethyl-1-cyclopropanecarboxylic acid |
| CAS | 15641-58-4 |
| EINECS | 627-306-2 |
| InChI | InChI=1/C8H14O2/c1-7(2)5(6(9)10)8(7,3)4/h5H,1-4H3,(H,9,10) |
Chrysanthemic acid - Physico-chemical Properties
| Molecular Formula | C8H14O2 |
| Molar Mass | 142.20 |
| Density | 0.999g/cm3 |
| Melting Point | 120-121℃ |
| Boling Point | 204.8°C at 760 mmHg |
| Flash Point | 97.5°C |
| Vapor Presure | 0.106mmHg at 25°C |
| Appearance | White powder or crystal |
| Storage Condition | Room Temprature |
| Refractive Index | 1.454 |
| MDL | MFCD00011538 |
| Physical and Chemical Properties | Chemical Properties The tetramethylchrysanthemum acid is a white crystal, m.p.121 ~ 123 ℃, soluble in organic solvents such as ethanol and slightly soluble in hot water. |
| Use | 2,2,3, 3-tetramethylcyclopropanecarboxylic acid is abbreviated tetramethylchrysanthemum acid, is the intermediate of pyrethroid fenpropathrin. As an intermediate of pesticide fenpropathrin |
Chrysanthemic acid - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 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. S37/39 - Wear suitable gloves and eye/face protection |
Chrysanthemic acid - Upstream Downstream Industry
Chrysanthemic acid - Nature
| RTECS number | GZ2083500 |
| storage conditions | Inert atmosphere,Room Temperature |
| acidity coefficient (pKa) | 5.20±0.44(Predicted) |
| water solubility | Slightly soluble in water. Soluble in methanol, ethanol and acetonitrile. |
Last Update：2024-04-10 22:29:15
Chrysanthemic acid - Production method
the preparation method is to add 2,2,3, 3-tetramethylcyclopropanecarboxylate ethyl ester, catalyst, sodium hydroxide, ethanol and water into the reaction kettle, stir up the temperature and reflux for 8-10h, steam out ethanol, dilute with water, draw into the acidification kettle while hot, add acid to acidify white crystals, and filter to obtain the finished product.
Last Update：2024-04-10 22:29:15
Chrysanthemic acid - Security information
| WGK Germany | 3 |
| Hazard Note | Irritant |
| HazardClass | IRRITANT |
| customs code | 29162090 |
Last Update：2024-04-10 22:29:15
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View History
Raw Materials for Chrysanthemic acid
Sodium nitrite
Glycine
PROPYLENE
tricarbon dioxide
Cyclopropene, 1,3,3-trimethyl-
Methyl 2,2,3,3-tetraMethylcyclopropanecarboxylate
3-PHENOXYBENZALDEHYDE CYANOHYDRIN, 70 WT% SOLUTION IN ETHER
2,3-Dimethyl-2-butene
METHYLMAGNESIUM IODIDE
Ethyl diazoacetate
Glycine
PROPYLENE
tricarbon dioxide
Cyclopropene, 1,3,3-trimethyl-
Methyl 2,2,3,3-tetraMethylcyclopropanecarboxylate
3-PHENOXYBENZALDEHYDE CYANOHYDRIN, 70 WT% SOLUTION IN ETHER
2,3-Dimethyl-2-butene
METHYLMAGNESIUM IODIDE
Ethyl diazoacetate
Downstream Products for Chrysanthemic acid