Atropic acid
- Product Name
- Atropic acid
- CAS No.
- 492-38-6
- Chemical Name
- Atropic acid
- Synonyms
- NSC 20987;ATROPIC ACID;Atropic Acid >10029 ATROPIC ACID;2-PHENYLACRYLIC ACID;Cinacalcet ImpurityI;Α-PHENYLACRYLIC ACID;Atropic acid，492-38-6;2-Phenylpropenoic acid;Ipratropium Impurity D
- CBNumber
- CB3224700
- Molecular Formula
- C9H8O2
- Formula Weight
- 148.16
- MOL File
- 492-38-6.mol
Atropic acid Property
- Melting point:
- 106-107°
- Boiling point:
- bp ~267° with partial decompn
- Density
- 1.0061 (rough estimate)
- refractive index
- 1.5049 (estimate)
- storage temp.
- 2-8°C
- solubility
- DMSO (Slightly), Methanol (Slightly)
- form
- Solid
- pka
- 3.86±0.11(Predicted)
- color
- White to Off-White
- Water Solubility
- 1.3g/L(20 ºC)
- Merck
- 14,874
- Stability:
- Light Sensitive
- InChIKey
- ONPJWQSDZCGSQM-UHFFFAOYSA-N
- CAS DataBase Reference
- 492-38-6(CAS DataBase Reference)
- NIST Chemistry Reference
- Benzeneacetic acid, «alpha»-methylene-(492-38-6)
- EPA Substance Registry System
- Benzeneacetic acid, .alpha.-methylene- (492-38-6)
Safety
- Risk Statements
- 36/37/38
- Safety Statements
- 26-36/37/39
- HS Code
- 29163990
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H315Causes skin irritation
H319Causes serious eye irritation
- Precautionary statements
-
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P280Wear protective gloves/protective clothing/eye protection/face protection.
N-Bromosuccinimide Price
- Product number
- A2390
- Product name
- Atropic Acid
- Purity
- >93.0%(GC)
- Packaging
- 5g
- Price
- $55
- Updated
- 2024/03/01
- Product number
- A2390
- Product name
- Atropic Acid
- Purity
- >93.0%(GC)
- Packaging
- 25g
- Price
- $189
- Updated
- 2024/03/01
- Product number
- A793850
- Product name
- Atropic Acid
- Packaging
- 100mg
- Price
- $65
- Updated
- 2021/12/16
- Product number
- A793850
- Product name
- Atropic Acid
- Packaging
- 250mg
- Price
- $80
- Updated
- 2021/12/16
- Product number
- A793850
- Product name
- Atropic Acid
- Packaging
- 1g
- Price
- $105
- Updated
- 2021/12/16
Atropic acid Chemical Properties,Usage,Production
Chemical Properties
White to Off-White Solid.
Uses
Atropic acid is an Impurity of Ipratropium bromide and Atropine Sulfate. Atropic acid and β,β-dimethylatropic acid are plant growth regulators.
Preparation
The synthesis of atropic acid involves several steps. Firstly, tropic acid is oxidized with hot KMnO4 to form benzoic acid. Secondly, tropic acid reacted with HBr to produce C9H9O2Br. Thirdly, C9H9O2Br is reacted with alcoholic KOH to yield atropic acid, C9H8O2. Finally, atropic acid is catalytically hydrogenated to form hydratropic acid, C9H10O2.
Reactions
Atropic acid is formed by the dehydration of tropic acid. Hence addition of water to atropic acid gives tropic acid.
Atropic acid, on oxidation yields benzoic acid. The formation of benzoic acid reveals that atropic acid and tropic acid contain atleast one benzene nucleus with a side chain containing carboxylic acid in their structure.
As atropic acid is an unsaturated acid it mean atropic acid may be either structure (I) or (II) .
Hence, the structure (II) is atropic acid which is confirmed by oxidation with KMnO4 to form phenylglyoxal.
Atropic acid Preparation Products And Raw materials
Raw materials
Preparation Products
Atropic acid Suppliers
- Tel
- --
- Fax
- --
- sales@tcieurope.be
- Country
- Belgium
- ProdList
- 2200
- Advantage
- 66
View Lastest Price from Atropic acid manufacturers
- Product
- Atropic acid 492-38-6
- Price
- US $1.00-100.00/KG
- Min. Order
- 1KG
- Purity
- 95%
- Supply Ability
- 200000KG
- Release date
- 2024-07-16
- Product
- 2-Phenylacrylic acid 492-38-6
- Price
- US $9.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 50000tons
- Release date
- 2023-05-25
- Product
- Ipratropium Bromide EP Impurity D 492-38-6
- Price
- US $0.00/mg
- Min. Order
- 1mg
- Purity
- above 96%
- Supply Ability
- 50mg
- Release date
- 2023-05-22