Benzoic anhydride
- Product Name
- Benzoic anhydride
- CAS No.
- 93-97-0
- Chemical Name
- Benzoic anhydride
- Synonyms
- Benzoyl benzoate;Benzoyl anhydride;BENZOIC ACID ANHYDRIDE;BENZOYL OXIDE;Benzoylbenzoate;Banzoyl benzoate;Phenyl anhydride;BENZOIC ANHYDRIDE;Benzoesureanhydrid;Dibenzoic anhydride
- CBNumber
- CB1260942
- Molecular Formula
- C14H10O3
- Formula Weight
- 226.23
- MOL File
- 93-97-0.mol
Benzoic anhydride Property
- Melting point:
- 38-42 °C(lit.)
- Boiling point:
- 360 °C
- Density
- 1.199 g/mL at 25 °C(lit.)
- refractive index
- nD15 1.57665
- Flash point:
- >230 °F
- storage temp.
- Inert atmosphere,2-8°C
- solubility
- 0.01g/l (experimental)
- form
- Crystals or Crystalline Powder
- color
- White to almost white
- Water Solubility
- 0.01 g/L
- Sensitive
- Moisture Sensitive
- Merck
- 14,1092
- BRN
- 516726
- InChIKey
- CHIHQLCVLOXUJW-UHFFFAOYSA-N
- CAS DataBase Reference
- 93-97-0(CAS DataBase Reference)
- NIST Chemistry Reference
- Benzoic acid, anhydride(93-97-0)
- EPA Substance Registry System
- Benzoic anhydride (93-97-0)
Safety
- Hazard Codes
- Xi
- Risk Statements
- 37/38-41-36/37/38
- Safety Statements
- 26-39-37/39
- WGK Germany
- 3
- F
- 10-21
- TSCA
- Yes
- HS Code
- 29163900
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Danger
- Hazard statements
-
H315Causes skin irritation
H318Causes serious eye damage
H372Causes damage to organs through prolonged or repeated exposure
- Precautionary statements
-
P260Do not breathe dust/fume/gas/mist/vapours/spray.
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P314Get medical advice/attention if you feel unwell.
N-Bromosuccinimide Price
- Product number
- 385980
- Product name
- Benzoic anhydride
- Purity
- ≥95%
- Packaging
- 100g
- Price
- $42.6
- Updated
- 2024/03/01
- Product number
- 385980
- Product name
- Benzoic anhydride
- Purity
- ≥95%
- Packaging
- 500g
- Price
- $143
- Updated
- 2024/03/01
- Product number
- B0078
- Product name
- Benzoic Anhydride
- Purity
- >97.0%(GC)(T)
- Packaging
- 25g
- Price
- $34
- Updated
- 2024/03/01
- Product number
- B0078
- Product name
- Benzoic Anhydride
- Purity
- >97.0%(GC)(T)
- Packaging
- 100g
- Price
- $67
- Updated
- 2024/03/01
- Product number
- A14269
- Product name
- Benzoic anhydride, 98%
- Packaging
- 50g
- Price
- $20.65
- Updated
- 2024/03/01
Benzoic anhydride Chemical Properties,Usage,Production
Chemical Properties
white to almost white crystals or crystalline
Uses
Benzoic anhydride is used as a benzoylating agent in the manufacture of pharmaceuticals, dyes and intermediates. It serves as an arylation agent in the Heck reaction. It is also used to get benzoic acid through dehydration. Further, it is used to prepare furan-2-yl-phenyl-methanone, which is similar to Friedel-Crafts acylation reaction. In addition to this, it is used for the synthesis of carboxylic esters and lactones.
Uses
Benzoic Anhydride is the more active analogue of benzoic acid formed via dehydration. Benzoic Anhydride is used in the synthesis of a wide range of organic compounds including some dyes. Benzoic Anhyd ride is also used as an arylation agent in the Heck reaction.
Uses
In organic syntheses, as benzoylating agent in the manufacture of pharmaceuticals, dyes, and intermediates.
Definition
ChEBI: Benzoic anhydride is an acyclic carboxylic anhydride. It is functionally related to a benzoic acid.
Preparation
To a flask containing 14.0 gm (0.1 mole) of benzoyl chloride and equipped with a stirrer is added 40 ml of dry dioxane and it is cooled to 5°C.Then 10 ml (0.1 mole) of dry pyridine is rapidly added at 5-10°C followed by 1.0 ml (0.056 mole) of water. After stirring for 10-15 min at 0-5°C, the reaction mixture is then poured into a mixture of 75 ml of cone, hydrochloric acid, 75 gm of cracked ice, and 350 ml of water. The product is filtered, washed first for 1 min with a cold 5% solution of sodium bicarbonate and then with water. The product is dried to afford 11.0 gm (97%), m.p. 43°C (recrystallized from a mixture of ether-petroleum ether).
Synthesis Reference(s)
Chemical and Pharmaceutical Bulletin, 35, p. 1262, 1987 DOI: 10.1248/cpb.35.1262
Tetrahedron Letters, 26, p. 1503, 1985 DOI: 10.1016/S0040-4039(00)98536-8
General Description
Benzoic anhydride undergoes Friedel-Crafts acylation reaction with benzene over various ion-exchanged heteropoly acids to yield benzophenone.
Purification Methods
Free it from benzoic acid by washing with NaHCO3, then water, and drying. Crystallise it from *benzene (0.5mL/g) by adding just enough pet ether (b 40-60o) to cause cloudiness, then cool in ice. It can be distilled at 210-220o/20mm. [Beilstein 19 IV 550.]
Benzoic anhydride Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from Benzoic anhydride manufacturers
- Product
- Benzoic anhydride 93-97-0
- Price
- US $99.00-66.00/kg
- Min. Order
- 0.001kg
- Purity
- 99%
- Supply Ability
- 5000
- Release date
- 2024-08-09
- Product
- Benzoic anhydride 93-97-0
- Price
- US $10.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 20 ton
- Release date
- 2024-12-10
- Product
- Benzoic anhydride 93-97-0
- Price
- US $1.00/KG
- Min. Order
- 1KG
- Purity
- 98%
- Supply Ability
- 500kg/month
- Release date
- 2021-05-28