ChemicalBook > CAS DataBase List > trans-2-Methyl-2-pentenoic acid
trans-2-Methyl-2-pentenoic acid
- Product Name
- trans-2-Methyl-2-pentenoic acid
- CAS No.
- 16957-70-3
- Chemical Name
- trans-2-Methyl-2-pentenoic acid
- Synonyms
- STRAWBERRIFF;FEMA 3195;(E)-2-Methylpent-2-enoic acid;FEMA NUMBER 3195;(e)-2-pentenoicaci;Methyl-2-pentenoic;RARECHEM AL BE 0127;METHYL-2-PENTENSAEURE, 2-;(E) 2-METHYL PENTENOIC ACID;(E)-2-Methylpent-2-en-1-sure
- CBNumber
- CB5403219
- Molecular Formula
- C6H10O2
- Formula Weight
- 114.14
- MOL File
- 16957-70-3.mol
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trans-2-Methyl-2-pentenoic acid Property
- Melting point:
- 26-28 °C (lit.)
- Boiling point:
- 123-125 °C/30 mmHg (lit.)
- Density
- 0.979 g/mL at 25 °C
- vapor density
- >1 (vs air)
- vapor pressure
- 1.63Pa at 24℃
- FEMA
- 3195 | 2-METHYL-2-PENTENOIC ACID
- refractive index
- n20/D 1.46(lit.)
- Flash point:
- 226 °F
- storage temp.
- Sealed in dry,Room Temperature
- solubility
- soluble in Chloroform, Methanol
- form
- clear liquid
- pka
- 5.00±0.19(Predicted)
- color
- Colorless to Light orange to Yellow
- Odor
- at 10.00 % in dipropylene glycol. fruity strawberry woody
- Odor Type
- fruity
- Water Solubility
- insoluble
- InChIKey
- JJYWRQLLQAKNAD-SNAWJCMRSA-N
- LogP
- 1.9 at 25℃
- CAS DataBase Reference
- 16957-70-3(CAS DataBase Reference)
- NIST Chemistry Reference
- 2-Pentenoic acid, 2-methyl-, (E)-(16957-70-3)
- EPA Substance Registry System
- 2-Pentenoic acid, 2-methyl-, (2E)- (16957-70-3)
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Safety
- Hazard Codes
- C
- Risk Statements
- 34
- Safety Statements
- 26-36/37/39-45
- RIDADR
- UN 3261 8/PG 3
- WGK Germany
- 2
- TSCA
- Yes
- HazardClass
- 8
- PackingGroup
- III
- HS Code
- 2916199590
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Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Danger
- Hazard statements
-
H314Causes severe skin burns and eye damage
- Precautionary statements
-
P260Do not breathe dust/fume/gas/mist/vapours/spray.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P363Wash contaminated clothing before reuse.
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N-Bromosuccinimide Price
Sigma-Aldrich
- Product number
- W319503
- Product name
- trans-2-Methyl-2-pentenoic acid
- Purity
- ≥98%, FCC, FG
- Packaging
- sample
- Price
- $67
- Updated
- 2024/03/01
Sigma-Aldrich
- Product number
- 264776
- Product name
- trans-2-Methyl-2-pentenoic acid
- Purity
- 97%
- Packaging
- 25g
- Price
- $40.7
- Updated
- 2024/03/01
TCI Chemical
- Product number
- M2814
- Product name
- trans-2-Methyl-2-pentenoic Acid
- Purity
- >97.0%(GC)(T)
- Packaging
- 5g
- Price
- $31
- Updated
- 2024/03/01
TCI Chemical
- Product number
- M2814
- Product name
- trans-2-Methyl-2-pentenoic Acid
- Purity
- >97.0%(GC)(T)
- Packaging
- 25g
- Price
- $88
- Updated
- 2024/03/01
Alfa Aesar
- Product number
- H60391
- Product name
- trans-2-Methyl-2-pentenoic acid
- Purity
- 97%
- Packaging
- 5g
- Price
- $20.9
- Updated
- 2021/12/16
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trans-2-Methyl-2-pentenoic acid Chemical Properties,Usage,Production
Chemical Properties
clear colorless to pale yellow liquid
Chemical Properties
2-Methyl-2-pentenoic acid has a fruity odor.
Occurrence
Reported found in strawberry
Uses
trans-2-Methyl-2-pentenoic Acid is an unsaturated analog of the anticonvulsant Valproic Acid (V094750) and is used for aroma characterization of different beers with different hops.
Preparation
By distillation of 2-hydroxy-2-methylvaleric acid (cis-form).
Definition
ChEBI: 2-Methyl-2-pentenoic acid is a methyl-branched fatty acid. It is a conjugate acid of a 2-methyl-(2E)-pentenoate(1-).
Taste threshold values
Taste characteristics at 50 ppm: sour, acidic, sweaty, berry and fruit-like.
General Description
Adsorption and desorption of trans-2-methyl-2-pentenoic acid in dichloromethane has been investigated by using in situ attenuated total reflection infrared spectroscopy. Asymmetric hydrogenation of trans-2-methyl-2-pentenoic acid in hexane over two well defined E-40692 and E-5220 Engelhard Pd/Al2O3 catalysts modified with cinchonidine has been studied.
Flammability and Explosibility
Not classified
trans-2-Methyl-2-pentenoic acid Preparation Products And Raw materials
Raw materials
Preparation Products
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trans-2-Methyl-2-pentenoic acid Suppliers
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View Lastest Price from trans-2-Methyl-2-pentenoic acid manufacturers
Hebei Mojin Biotechnology Co., Ltd
- Product
- trans-2-Methyl-2-pentenoic acid 16957-70-3
- Price
- US $0.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 50000KG/month
- Release date
- 2023-06-29
Hebei Guanlang Biotechnology Co., Ltd.
- Product
- trans-2-Methyl-2-pentenoic acid 16957-70-3
- Price
- US $100.00/KG
- Min. Order
- 1KG
- Purity
- 99%min
- Supply Ability
- 200TON
- Release date
- 2020-12-10
Shaanxi Dideu Medichem Co. Ltd
- Product
- trans-2-Methyl-2-pentenoic acid 16957-70-3
- Price
- US $1.00-0.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 50 tons
- Release date
- 2020-01-17
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