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DL-Benzoin

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DL-Benzoin

EINECS
CAS No. 579-44-2 Density
Solubility Melting Point
Formula Boiling Point
Molecular Weight Flash Point
Transport Information Appearance
Safety Risk Codes
Molecular Structure Molecular Structure of 579-44-2 (DL-Benzoin) Hazard Symbols
Synonyms

 

DL-Benzoin Chemical Properties

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):
                    
IUPAC Name: 2-Hydroxy-1,2-diphenylethanone
Product Category of DL-Benzoin (CAS NO.579-44-2): Nutraceuticals

DL-Benzoin Uses

 DL-Benzoin (CAS NO.579-44-2) has been used as analytical reagent, organic synthesis intermediate and preservative.

DL-Benzoin 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%.

DL-Benzoin 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.

DL-Benzoin Safety Profile

Safety Statements: 24/25 
S24/25:Avoid contact with skin and eyes.

DL-Benzoin 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.

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