Benzoic anhydride
Benzoic anhydride
CAS: 93-97-0
Molecular Formula: C14H10O3
Benzoic anhydride - Names and Identifiers
| Name | Benzoic anhydride |
| Synonyms | AI3-03698 NSC 37116 Benzoylbenzoate Phenyl anhydride Banzoyl benzoate Benzoyl benzoate Benzoic anhydride Benzoyl anhydride Dibenzoic anhydride BENZOIC ANHYDRIDE pure Benzoic acid, anhydride Dibenzoic acid anhydride Benzoic acid, 1,1'-anhydride |
| CAS | 93-97-0 |
| EINECS | 202-291-1 |
| InChI | InChI=1/C14H10O3/c15-13(11-7-3-1-4-8-11)17-14(16)12-9-5-2-6-10-12/h1-10H |
| InChIKey | CHIHQLCVLOXUJW-UHFFFAOYSA-N |
Benzoic anhydride - Physico-chemical Properties
| Molecular Formula | C14H10O3 |
| Molar Mass | 226.23 |
| Density | 1.199g/mLat 25°C(lit.) |
| Melting Point | 38-42°C(lit.) |
| Boling Point | 360 °C |
| Flash Point | >230°F |
| Water Solubility | 0.01 g/L |
| Solubility | 0.01g/l (experimental) |
| Vapor Presure | 2.29E-05mmHg at 25°C |
| Appearance | White crystal |
| Color | White to almost white |
| Merck | 14,1092 |
| BRN | 516726 |
| Storage Condition | Inert atmosphere,2-8°C |
| Sensitive | Moisture Sensitive |
| Refractive Index | nD15 1.57665 |
| MDL | MFCD00003073 |
| Physical and Chemical Properties |
|
| Use | It is used as a benzoylating agent in the manufacture of drugs, dyes and preservatives. It can also be used as an additive and softener for some polymers. |
Benzoic anhydride - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | R37/38 - Irritating to respiratory system and skin. R41 - Risk of serious damage to 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. S39 - Wear eye / face protection. S37/39 - Wear suitable gloves and eye/face protection |
| WGK Germany | 3 |
| FLUKA BRAND F CODES | 10-21 |
| TSCA | Yes |
| HS Code | 29163900 |
Benzoic anhydride - Reference Information
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Use | organic synthesis intermediates. For pharmaceutical, dyes, preservatives, benzoylating agents, softeners. It can also be used for water analysis. benzoylating agents used in the manufacture of pharmaceuticals, dyes, preservatives, and also used as additives and softeners for some polymers |
| production method | is obtained by reacting benzoic acid with acetic anhydride. Benzoic acid, acetic anhydride and syrup-like phosphoric acid were distilled together at a temperature not exceeding 120 ° C. This operation was repeated by adding acetic anhydride to the reaction mixture when a certain amount of the fraction was distilled off. The fractions were then distilled off until the temperature of the reactants reached 270 °c. The distillation residue was fractionated under reduced pressure, and the fraction at 210-220 ° C. Was collected under a pressure of 2.53-2.67kPa to obtain a crude product of benzoic anhydride, which was recrystallized to obtain a finished product. |
Last Update：2024-04-09 21:11:58
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View History
Benzoic anhydride
Esketamine Hydrochloride Impurity 2 (Esketamine Hydrochloride EP Impurity B)
Methyl 2-amino-3,5-dibromobenzoate
(E)-4-[(S)-2,6,6-Trimethyl-2-cyclohexen-1α-yl]-3-buten-2-one
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3-AMINO-5-(3-NITRO-PHENYL)-THIOPHENE-2-CARBOXYLIC ACID ETHYL ESTER
Dacarel
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Propyl gallate
Esketamine Hydrochloride Impurity 2 (Esketamine Hydrochloride EP Impurity B)
Methyl 2-amino-3,5-dibromobenzoate
(E)-4-[(S)-2,6,6-Trimethyl-2-cyclohexen-1α-yl]-3-buten-2-one
Octyl(triphenyl)phosphonium bromide
2,6-Ditert-Butyl-4-Ethylphenol
3-AMINO-5-(3-NITRO-PHENYL)-THIOPHENE-2-CARBOXYLIC ACID ETHYL ESTER
Dacarel
Remdesivir-002-DS
Propyl gallate