4-Methylphthalic anhydride
Uses- Product Name
- 4-Methylphthalic anhydride
- CAS No.
- 19438-61-0
- Chemical Name
- 4-Methylphthalic anhydride
- Synonyms
- 5-METHYLISOBENZOFURAN-1,3-DIONE;Ethyl-2-benzofuran;4-Methylphthalic;4-Methylphthalic anh;Resorcinol dibenzoate;4-Methylphalic Anhydride;4-METHYLPHTHALIC ANHYDRIDE;4-MethylphthalicAnhydride>5-methyl-3-isobenzofurandione;4-Methylphthalic anhydride,96%
- CBNumber
- CB0378529
- Molecular Formula
- C9H6O3
- Formula Weight
- 162.14
- MOL File
- 19438-61-0.mol
4-Methylphthalic anhydride Property
- Melting point:
- 90-92 °C(lit.)
- Boiling point:
- 295 °C(lit.)
- Density
- 1.2599 (rough estimate)
- refractive index
- 1.5380 (estimate)
- storage temp.
- under inert gas (nitrogen or Argon) at 2-8°C
- form
- Flakes or Crystalline Powder
- color
- White to yellow-orange
- Water Solubility
- insoluble
- InChI
- InChI=1S/C9H6O3/c1-5-2-3-6-7(4-5)9(11)12-8(6)10/h2-4H,1H3
- InChIKey
- ZOXBWJMCXHTKNU-UHFFFAOYSA-N
- SMILES
- C1(=O)C2=C(C=C(C)C=C2)C(=O)O1
- CAS DataBase Reference
- 19438-61-0(CAS DataBase Reference)
- NIST Chemistry Reference
- 4-Methylphthalic anhydride(19438-61-0)
- EPA Substance Registry System
- 1,3-Isobenzofurandione, 5-methyl- (19438-61-0)
Safety
- Hazard Codes
- Xi
- Risk Statements
- 36/37/38
- Safety Statements
- 26-37/39-36-36/37/39
- WGK Germany
- 3
- HS Code
- 29173990
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing 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.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
N-Bromosuccinimide Price
- Product number
- M0559
- Product name
- 4-Methylphthalic Anhydride
- Purity
- >98.0%(GC)(T)
- Packaging
- 25g
- Price
- $55
- Updated
- 2025/07/31
- Product number
- M0559
- Product name
- 4-Methylphthalic Anhydride
- Purity
- >98.0%(GC)(T)
- Packaging
- 500g
- Price
- $391
- Updated
- 2025/07/31
- Product number
- OR919135
- Product name
- 4-Methylphthalic Anhydride
- Purity
- 95%
- Packaging
- 100g
- Price
- $189
- Updated
- 2021/12/16
- Product number
- 2H26-1-0K
- Product name
- 4-Methylphthalic Anhydride
- Purity
- 95%
- Packaging
- 100g
- Price
- $208
- Updated
- 2021/12/16
- Product number
- JK462717
- Product name
- 4-Methylphthalic Anhydride
- Purity
- 98%
- Packaging
- 25g
- Price
- $39
- Updated
- 2021/12/16
4-Methylphthalic anhydride Chemical Properties,Usage,Production
Uses
4-Methylphthalic anhydride (4-MPA) is mainly used as an important intermediate in the synthesis of herbicides, especially several cereal herbicides, and can also be used as an intermediate in the synthesis of dyes.
Chemical Properties
white to yellow-orange flakes or
Synthesis
4316-23-8
19438-61-0
The general procedure for the synthesis of 5-methylisobenzofuran-1,3-dione from 4-methylphthalic acid was as follows: 10.0 g of 4-methylphthalic acid and a solvent mixture consisting of 20 mL of N,N-dimethylacetamide, 100 mL of chlorobenzene, and 40 mL of toluene were added to a 300 mL three-necked flask at room temperature and under nitrogen protection. The reaction mixture was heated to 111 °C and the reaction was stirred at this temperature for 10 hours. Upon completion of the reaction, the solvent was removed by distillation under reduced pressure and the resulting crude product was washed with toluene and dispersed to give 3.6 g of 4-methylphthalic anhydride.
References
[1] Organic Letters, 2010, vol. 12, # 21, p. 4796 - 4799
[2] Monatshefte fuer Chemie, 1891, vol. 12, p. 626
[3] Patent: US2016/376285, 2016, A1. Location in patent: Paragraph 0121
4-Methylphthalic anhydride Preparation Products And Raw materials
Raw materials
Preparation Products
4-Methylphthalic anhydride Suppliers
- Tel
- --
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- info@pschemicals.com
- Country
- The Netherlands
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View Lastest Price from 4-Methylphthalic anhydride manufacturers
- Product
- 4-Methylphthalic anhydride 19438-61-0
- Price
- US $15.00-10.00/KG
- Min. Order
- 1KG
- Purity
- 99%+ HPLC
- Supply Ability
- Monthly supply of 1 ton
- Release date
- 2021-08-11
- Product
- 4-Methylphthalic anhydride 19438-61-0
- Price
- US $8.80/KG
- Min. Order
- 1KG
- Purity
- 97%-99%
- Supply Ability
- 100kg
- Release date
- 2019-07-12