alpha-methyl-alpha-tolualdehyd
2-Phenylpropionaldehyde
CAS: 93-53-8
Molecular Formula: C9H10O
alpha-methyl-alpha-tolualdehyd - Names and Identifiers
| Name | 2-Phenylpropionaldehyde |
| Synonyms | FEMA 2886 HYACINTHAL 2-Phenylpropanal HYDRATROPALDEHYDE hydratopic aldehyde HYDRATROPIC ALDEHYDE 2-Phenylpropionaldehyde DL-2-PHENYLPROPIONALDEHYDE alpha-methylphenylacetaldehyde alpha-methyl-alpha-tolualdehyd alpha-methyl-alpha-toluicaldehyde alpha-Methyl-alpha-toluic aldehyde |
| CAS | 93-53-8 |
| EINECS | 202-255-5 |
| InChI | InChI=1/C9H10O/c1-8(7-10)9-5-3-2-4-6-9/h2-8H,1H3 |
| InChIKey | IQVAERDLDAZARL-UHFFFAOYSA-N |
alpha-methyl-alpha-tolualdehyd - Physico-chemical Properties
| Molecular Formula | C9H10O |
| Molar Mass | 134.18 |
| Density | 1.002 g/mL at 25 °C (lit.) |
| Melting Point | 60°C |
| Boling Point | 92-94 °C/12 mmHg (lit.) |
| Flash Point | 169°F |
| JECFA Number | 1467 |
| Water Solubility | 10μg/L |
| Solubility | Soluble in most fixed oils, propylene glycol. Insoluble in glycerin. |
| Vapor Presure | 40Pa at 20℃ |
| Appearance | Liquid |
| Color | Clear colorless |
| BRN | 4291321 |
| Storage Condition | 2-8°C |
| Sensitive | Air Sensitive |
| Refractive Index | n20/D 1.517(lit.) |
| Physical and Chemical Properties | Water white to yellowish liquid. It has a similar aroma of daffodils, grass leaves and melons. Boiling point 222 ℃, flash point 69 ℃. Lml is soluble in 1.5mL 70% ethanol, soluble in most non-volatile oils and mineral oils, insoluble in glycerin, slightly soluble in propylene glycol. |
alpha-methyl-alpha-tolualdehyd - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - 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. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. |
| WGK Germany | 3 |
| RTECS | CY1460000 |
| FLUKA BRAND F CODES | 9-23 |
| TSCA | Yes |
| HS Code | 29122990 |
alpha-methyl-alpha-tolualdehyd - Reference Information
| FEMA | 2886 | 2-PHENYLPROPIONALDEHYDE |
| LogP | 1.96 |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| flavors and fragrances | 2-phenylpropanal is a precious fragrance that is not found in nature, belongs to synthetic spices. Its appearance was colorless liquid. Slightly soluble in water, soluble in organic solvents such as ethanol. |
| Application | The solanine aldehyde has a strong fresh floral fragrance, which is mainly used in daily essences such as Hyacinth, clove and Lily. In the food flavor can also be used in trace amounts. It is also an important chemical raw materials, widely used in spices, pharmaceuticals, dyes and pesticides and other industries. |
| Acute toxicity | oral ld503.65 g/kg (RAT), skin test LD50>5g/kg (rabbit). |
| assay | determined by aldehyde assay (OT-6). The amount of the sample taken was 1G. The equivalence factor (e) in the calculation is taken as 67.09. Or according to Gas chromatography (GT-10-4) using non-polar column method. |
| toxicity | GRAS(FEMA). LD50 2800mg/kg (rat, oral). |
| usage limit | FEMA(mg/kg): Soft drink 0.61; Cold drink 0.30; Candy 0.85; Baked goods 0.85. Moderate limits (FDA § 172.515,2000). |
| Use | GB 2760-1996 specifies the permitted use of flavorants. Mainly used for the preparation of melon, almond, cherry, peach, plum flavor. |
| production method | is obtained by condensation of acetophenone and ethyl chloroacetate under alkaline conditions. Obtained by distillation of Methyl phenyl ethylene glycol at atmospheric pressure. |
Last Update：2024-04-09 15:16:53
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