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| CAS No.: | 579-44-2 |
|---|---|
| Name: | DL-Benzoin |
| Molecular Structure: | |
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| Formula: | C14H12O2 |
| Molecular Weight: | 212.248 |
| Synonyms: | 579-44-2 |
| EINECS: | 204-331-3 |
| Density: | 1.179 g/cm3 |
| Melting Point: | 134-138oC(lit.) |
| Boiling Point: | 343oC at 760 mmHg |
| Flash Point: | 154.8oC |
| Solubility: | 0.3g/L(25 oC) |
| Appearance: | Off-white crystals, with a light camphor odor. |
| Safety: | 24/25 |
| PSA: | 37.30000 |
| LogP: | 2.60290 |
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Chemistry
Empirical Formula: C14H12O2
Molecular Weight: 212.2439 g/mol
EINECS: 204-331-3
Index of Refraction: 1.609
Density: 1.179 g/cm3
Flash Point: 154.8 °C
Enthalpy of Vaporization: 61.93 kJ/mol
Boiling Point: 343 °C at 760 mmHg
Vapour Pressure: 2.78E-05 mmHg at 25 °C
Melting point: 134-138 °C(lit.)
Structure of DL-Benzoin (CAS NO.579-44-2):
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IUPAC Name: 2-Hydroxy-1,2-diphenylethanone
Product Category of DL-Benzoin (CAS NO.579-44-2): Nutraceuticals
Uses
DL-Benzoin (CAS NO.579-44-2) has been used as analytical reagent, organic synthesis intermediate and preservative.
Production
Mixed Benzene formaldehyde with Ethanol , and take Sodium hydroxide solution to adjust pH value of 7-8, then adding 3% of the Sodium cyanide solution. Then at the 75-80 °C refluxing 0.5h, cooled to 10 °C below for filtration. Take the cake being washed to non - Cyanide to derive the product, the yield of 90%.
Toxicity Data With Reference
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| mouse | LD50 | oral | > 3gm/kg (3000mg/kg) | BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) | Iyakuhin Kenkyu. Study of Medical Supplies. Vol. 15, Pg. 359, 1984. |
| rabbit | LD50 | skin | 8870mg/kg (8870mg/kg) | Food and Cosmetics Toxicology. Vol. 11, Pg. 871, 1973. | |
| rat | LD50 | oral | 10gm/kg (10000mg/kg) | Food and Cosmetics Toxicology. Vol. 11, Pg. 871, 1973. |
DL-Benzoin (CAS NO.579-44-2) hasn't been listed as a carcinogen by NTP, IARC, ACGIH, or CA Prop 65. And the toxicological properties have not been fully investigated. You can see actual entry in RTECS for complete information.
Safety Profile
Safety Statements: 24/25
S24/25:Avoid contact with skin and eyes.
Specification
DL-Benzoin , its cas register number is 579-44-2. It also can be called Benzoin tincture ; Benzoin ; and 2-Hydroxy-1,2-diphenylethan-1-one . It is hazardous, so the first aid measures and others should be known. Such as: When on the skin: should flush skin with plenty of water immediately for at least 15 minutes while removing contaminated clothing. Or in the eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. While, it's inhaled: Remove from exposure and move to fresh air immediately. Then you have the ingesting of the product : Do not induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
In addition, DL-Benzoin (CAS NO.579-44-2) could be stable under normal temperatures and pressures. It is not compatible with strong oxidizing agents, and you must not take it with incompatible materials. And also prevent it to broken down into hazardous decomposition products: carbon monoxide, carbon dioxide.