3,3-Dimethylacrylic acid
- Product Name
- 3,3-Dimethylacrylic acid
- CAS No.
- 541-47-9
- Chemical Name
- 3,3-Dimethylacrylic acid
- Synonyms
- 3-METHYLBUT-2-ENOIC ACID;3-METHYL-2-BUTENOIC ACID;SENECIOIC ACID;SENECIC ACID;3-METHYLCROTONIC ACID;3-Methylbutenoic acid;FEMA 3187;AURORA 22781;Seneciosαure;(CH3)2C=CHCOOH
- CBNumber
- CB6273219
- Molecular Formula
- C5H8O2
- Formula Weight
- 100.12
- MOL File
- 541-47-9.mol
3,3-Dimethylacrylic acid Property
- Melting point:
- 65-70 °C (lit.)
- Boiling point:
- 194-195 °C (lit.)
- Density
- 0,969 g/cm3
- refractive index
- 1.4226 (estimate)
- FEMA
- 3187 | 3-METHYLCROTONIC ACID
- Flash point:
- 93°C
- storage temp.
- Keep in dark place,Sealed in dry,Room Temperature
- solubility
- Chloroform (Slightly), Methanol (Slightly)
- form
- Solid
- pka
- pK1:5.12 (25°C)
- color
- Off-White to Pale Orange
- Odor
- at 1.00 % in propylene glycol. green phenolic dairy
- Odor Type
- phenolic
- Water Solubility
- Soluble in water, and methanol.
- JECFA Number
- 1204
- BRN
- 1720305
- InChIKey
- YYPNJNDODFVZLE-UHFFFAOYSA-N
- LogP
- 1.35
- CAS DataBase Reference
- 541-47-9(CAS DataBase Reference)
- NIST Chemistry Reference
- 2-Butenoic acid, 3-methyl-(541-47-9)
- EPA Substance Registry System
- 2-Butenoic acid, 3-methyl- (541-47-9)
Safety
- Hazard Codes
- Xi,C
- Risk Statements
- 37/38-41-34
- Safety Statements
- 26-36/37/39-45-27
- WGK Germany
- 1
- RTECS
- GQ5425000
- F
- 21
- TSCA
- Yes
- HS Code
- 29161900
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Danger
- Hazard statements
-
H315Causes skin irritation
H318Causes serious eye damage
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P271Use only outdoors or in a well-ventilated area.
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.
N-Bromosuccinimide Price
- Product number
- D138606
- Product name
- 3,3-Dimethylacrylic acid
- Purity
- 97%
- Packaging
- 500g
- Price
- $64.4
- Updated
- 2024/03/01
- Product number
- D138606
- Product name
- 3,3-Dimethylacrylic acid
- Purity
- 97%
- Packaging
- 100g
- Price
- $91.2
- Updated
- 2024/03/01
- Product number
- M0543
- Product name
- 3-Methylcrotonic Acid
- Purity
- >98.0%(GC)(T)
- Packaging
- 25g
- Price
- $18
- Updated
- 2024/03/01
- Product number
- M0543
- Product name
- 3-Methylcrotonic Acid
- Purity
- >98.0%(GC)(T)
- Packaging
- 100g
- Price
- $49
- Updated
- 2024/03/01
- Product number
- A16865
- Product name
- 3,3-Dimethylacrylic acid, 98%
- Packaging
- 25g
- Price
- $26.65
- Updated
- 2024/03/01
3,3-Dimethylacrylic acid Chemical Properties,Usage,Production
Description
May be prepared by the action of alkalis or bases on the ester of α-bromoisovaleric acid; by condensation of acetone with malonic acid or bromoacetic ester; by oxidation of mesityl oxide with sodium hypochlorite.
Chemical Properties
3-Methylcrotonic acid has green, phenolic, dairy aroma
Chemical Properties
White to brown crystal
Occurrence
Reported found in the rhizomes of Senecio kaempferi Seib.; the corresponding ester occurs naturally in waste wort. Also reported found in raspberries, wheat bread, cocoa, coffee, black tea, Arctic bramble, and green and roasted maté.
Uses
Chemical Intermediates.
Definition
ChEBI: A methyl-branched fatty acid that is but-2-enoic acid bearing a methyl substituent at position 3.
Preparation
By the action of alkalis or bases on the ester of α-bromoisovaleric acid; by condensation of acetone with malonic acid or bromoacetic ester; by oxidation of mesityl oxide with sodium hypochlorite.
Synthesis Reference(s)
Journal of the American Chemical Society, 71, p. 3214, 1949 DOI: 10.1021/ja01177a079
Organic Syntheses, Coll. Vol. 3, p. 302, 1955
Tetrahedron Letters, 36, p. 2469, 1995 DOI: 10.1016/0040-4039(95)00285-K
Purification Methods
Crystallise the acid from hot water or pet ether (b 60-80o). [Beilstein 2 IV 1555.]
3,3-Dimethylacrylic acid Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from 3,3-Dimethylacrylic acid manufacturers
- Product
- 3,3-Dimethylacrylic acid 541-47-9
- Price
- US $0.00/Kg/Bag
- Min. Order
- 1KG
- Purity
- 995
- Supply Ability
- 5000mt/year
- Release date
- 2020-09-08
- Product
- 3,3-Dimethylacrylic acid 541-47-9
- Price
- US $0.00-0.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 500000kg
- Release date
- 2024-10-31
- Product
- 3,3-Dimethylacrylic acid 541-47-9
- Price
- US $0.00/kg
- Min. Order
- 1kg
- Purity
- 0.99
- Supply Ability
- 20tons
- Release date
- 2023-09-18