Crotonaldehyde (CAS 123-73-9) — formula C4H6O, molecular weight 70.09; category organic chemicals.
| CAS Number | 123-73-9 |
|---|---|
| Molecular Formula | C4H6O |
| Molecular Weight | 70.09 |
| Melting Point | -105 °F (EPA, 1998) |
| Boiling Point | 219 °F at 760 mmHg (EPA, 1998) |
| LogP | 0.5 |
| Applications | Uses: Used in the synthesis of other organic chemicals, [ACGIH], Used to make other chemicals (n-butyl alcohol, quinaldine, crotonic acid, 2-ethylhexyl alcohol, butyraldehyde, surface-active agents, resins, rubber antioxidants, textile and paper sizes, insecticides, and flavoring agents), Also used as a fuel-gas warning agent, solvent for polyvinyl chloride and purification of mineral oils, alcohol denaturant, leather tanning agent, to locate breaks and leaks in pipes, and in chemical warfare, [HSDB], Petroleum Production and Refining [Category: Industry], Leather Tanning and Processing [Category: Industry], For crotonaldehyde (USEPA, OPP Pesticide Code: 202600) there are 0 labels match., SRP: Not registered for current use in the U.S., but approved pesticide uses may change periodically and so federal, state and local authorities must be consulted for currently approved uses., Crotonaldehyde was formerly used in the manufacture of n-butanol, but currently, the most extensive use of crotonaldehyde is in the manufacture of sorbic acid. Crotonaldehyde has also been used as a warning agent in fuel gases, in the preparation of rubber accelerators, in leather tanning, as an alcohol denaturant, and as a stabilizer for tetraethyl-lead., Manufacture of butyl alcohol, methoxybutyraldehyde, sorbic acid, maleic acid, crotyl alcohol. In polymer chemistry: manufacture of resins and polyvinyl acetals, solvent for polyvinyl chloride, rubber antioxidant, increases rubber strength with ketones. In prepatation of insecticides and fertilizers. In production of flavors., Intermediate for n-butyl alcohol and 2-ethylhexyl alcohol, solvent, preparation of rubber accelerators, purification of lubricating oils, tear gas, fuel-gas warning agent, organic synthesis, leather tanning, alcohol denaturant., CHEM INT FOR N-BUTYL ALCOHOL, QUINALDINE, CROTONIC ACID, SURFACE-ACTIVE AGENTS, TEXTILE & PAPER SIZES, INSECTICIDES & FLAVORING AGENTS, FUEL-GAS WARNING AGENT, SOLVENT FOR POLYVINYL CHLORIDE, ALCOHOL DENATURANT, LEATHER TANNING AGENT, Crotonaldehyde, Industry Uses: Intermediate, Household Products: Information on 1 consumer products that contain Crotonaldehyde in the following categories is provided:, • Auto Products, Methods of Manufacturing: Aldol condensation of two molecules of acetaldehyde., The usual method to produce crotonaldehyde is the aldol reaction of acetaldehyde followed by dehydration of the acetaldol and distillation. Typically the product is about 99% pure., Impurities: 2, 6-di-tert-Butyl-p-cresol, CAS 128-37-0, 0.1 - 1%, Formulations, Preparations: Grades: Technical, 87% water-wet form, Liquid, Assay 92.5% grade, from Eastman Chemical, Commercial product is a 95:5 mixture of trans:cis isomers, Commercial crotonaldehyde is the trans isomer., Commercial product is a 95:5 mixture of trans:cis isomers., Consumption Patterns: 88% IS USED AS AN INT FOR N-BUTANOL, 10% FOR N-BUTYRALDEHYDE, 2% FOR CROTONIC ACID AND SORBIC ACID (1964), The largest use of crotonaldehyde has been in the mfr of n-butanol. This process is still used commercially but has been displaced partially by the oxo process., U.S. Production: 2023: 50, 000 - <250, 000 lb, 2022: 250, 000 - <550, 2021: <50, 2020: 250, (1975) PROBABLY GREATER THAN 9.1X10+5 GRAMS, 2-Butenal is listed as a High Production Volume (HPV) chemical (65FR81686). Chemicals listed as HPV were produced in or imported into the U.S. in >1 million pounds in 1990 and, or 1994. The HPV list is based on the 1990 Inventory Update Rule. (IUR) (40 CFR part 710 subpart B, 51FR21438)., Production volumes for non-confidential chemicals reported under the Inventory Update Rule. [Table#955], Non-confidential 2016 Chemical Data Reporting (CDR) information on the production and use of chemicals manufactured or imported into the United States. Chemical: Crotonaldehyde:, Table: National Aggregate Production Volume (pounds) [Table#956], (1972) PROBABLY GREATER THAN 1.36X10+6 GRAMS, (1975) PROBABLY GREATER THAN 9.08X10+5 GRAMS, U.S. Imports: (1984) 2.1X10+5 g, (1973) 6.02X10+6 GRAMS, General Manufacturing Information: Plastics Material and Resin Manufacturing, 2-Butenal, (2E)-: ACTIVE, 2-Butenal: ACTIVE, Crotonaldehyde ... exists in two stereoisomeric forms: cis-crotonaldehyde and trans-crotonaldehyde. Both isomers are contained in commercially available crotonaldehyde, in which the trans isomer predominates (> 95%) due to its higher thermodynamic stability., Crotonaldehyde is also a byproduct in the synthesis of 1, 3-butylene glycol and in acetic acid synthesis by methanol carbonylation. As a result of incomplete combustion, it is also contained in automobile exhaust gases. |
| Category | Organic Chemicals |
Documented applications: Uses: Used in the synthesis of other organic chemicals, [ACGIH], Used to make other chemicals (n-butyl alcohol, quinaldine, crotonic acid, 2-ethylhexyl alcohol, butyraldehyde, surface-active agents, resins, rubber antioxidants, textile and paper sizes, insecticides, and flavoring agents), Also used as a fuel-gas warning agent, solvent for polyvinyl chloride and purification of mineral oils, alcohol denaturant, leather tanning agent, to locate breaks and leaks in pipes, and in chemical warfare, [HSDB], Petroleum Production and Refining [Category: Industry], Leather Tanning and Processing [Category: Industry], For crotonaldehyde (USEPA, OPP Pesticide Code: 202600) there are 0 labels match., SRP: Not registered for current use in the U.S., but approved pesticide uses may change periodically and so federal, state and local authorities must be consulted for currently approved uses., Crotonaldehyde was formerly used in the manufacture of n-butanol, but currently, the most extensive use of crotonaldehyde is in the manufacture of sorbic acid. Crotonaldehyde has also been used as a warning agent in fuel gases, in the preparation of rubber accelerators, in leather tanning, as an alcohol denaturant, and as a stabilizer for tetraethyl-lead., Manufacture of butyl alcohol, methoxybutyraldehyde, sorbic acid, maleic acid, crotyl alcohol. In polymer chemistry: manufacture of resins and polyvinyl acetals, solvent for polyvinyl chloride, rubber antioxidant, increases rubber strength with ketones. In prepatation of insecticides and fertilizers. In production of flavors., Intermediate for n-butyl alcohol and 2-ethylhexyl alcohol, solvent, preparation of rubber accelerators, purification of lubricating oils, tear gas, fuel-gas warning agent, organic synthesis, leather tanning, alcohol denaturant., CHEM INT FOR N-BUTYL ALCOHOL, QUINALDINE, CROTONIC ACID, SURFACE-ACTIVE AGENTS, TEXTILE & PAPER SIZES, INSECTICIDES & FLAVORING AGENTS, FUEL-GAS WARNING AGENT, SOLVENT FOR POLYVINYL CHLORIDE, ALCOHOL DENATURANT, LEATHER TANNING AGENT, Crotonaldehyde, Industry Uses: Intermediate, Household Products: Information on 1 consumer products that contain Crotonaldehyde in the following categories is provided:, • Auto Products, Methods of Manufacturing: Aldol condensation of two molecules of acetaldehyde., The usual method to produce crotonaldehyde is the aldol reaction of acetaldehyde followed by dehydration of the acetaldol and distillation. Typically the product is about 99% pure., Impurities: 2, 6-di-tert-Butyl-p-cresol, CAS 128-37-0, 0.1 - 1%, Formulations, Preparations: Grades: Technical, 87% water-wet form, Liquid, Assay 92.5% grade, from Eastman Chemical, Commercial product is a 95:5 mixture of trans:cis isomers, Commercial crotonaldehyde is the trans isomer., Commercial product is a 95:5 mixture of trans:cis isomers., Consumption Patterns: 88% IS USED AS AN INT FOR N-BUTANOL, 10% FOR N-BUTYRALDEHYDE, 2% FOR CROTONIC ACID AND SORBIC ACID (1964), The largest use of crotonaldehyde has been in the mfr of n-butanol. This process is still used commercially but has been displaced partially by the oxo process., U.S. Production: 2023: 50, 000 - <250, 000 lb, 2022: 250, 000 - <550, 2021: <50, 2020: 250, (1975) PROBABLY GREATER THAN 9.1X10+5 GRAMS, 2-Butenal is listed as a High Production Volume (HPV) chemical (65FR81686). Chemicals listed as HPV were produced in or imported into the U.S. in >1 million pounds in 1990 and, or 1994. The HPV list is based on the 1990 Inventory Update Rule. (IUR) (40 CFR part 710 subpart B, 51FR21438)., Production volumes for non-confidential chemicals reported under the Inventory Update Rule. [Table#955], Non-confidential 2016 Chemical Data Reporting (CDR) information on the production and use of chemicals manufactured or imported into the United States. Chemical: Crotonaldehyde:, Table: National Aggregate Production Volume (pounds) [Table#956], (1972) PROBABLY GREATER THAN 1.36X10+6 GRAMS, (1975) PROBABLY GREATER THAN 9.08X10+5 GRAMS, U.S. Imports: (1984) 2.1X10+5 g, (1973) 6.02X10+6 GRAMS, General Manufacturing Information: Plastics Material and Resin Manufacturing, 2-Butenal, (2E)-: ACTIVE, 2-Butenal: ACTIVE, Crotonaldehyde ... exists in two stereoisomeric forms: cis-crotonaldehyde and trans-crotonaldehyde. Both isomers are contained in commercially available crotonaldehyde, in which the trans isomer predominates (> 95%) due to its higher thermodynamic stability., Crotonaldehyde is also a byproduct in the synthesis of 1, 3-butylene glycol and in acetic acid synthesis by methanol carbonylation. As a result of incomplete combustion, it is also contained in automobile exhaust gases..
Crotonaldehyde is a carbon-based organic compound with CAS registry number 123-73-9 and molecular formula C4H6O (molecular weight 70.09), belonging to the organic chemicals segment of chemical raw materials.
CAS number: 123-73-9
Its molecular formula C4H6O comprises 4 C, 6 H, 1 O atoms.
Also known as: Crotonaldehyde · 巴豆醛
Category: organic chemicals
The CAS registry number of Crotonaldehyde is 123-73-9.
Molecular formula C4H6O, molecular weight 70.09.
It is also registered under: Crotonaldehyde, 巴豆醛.
Recorded applications: Uses: Used in the synthesis of other organic chemicals, [ACGIH], Used to make other chemicals (n-butyl alcohol, quinaldine, crotonic acid, 2-ethylhexyl alcohol, butyraldehyde, surface-active agents, resins, rubber antioxidants, textile and paper sizes, insecticides, and flavoring agents), Also used as a fuel-gas warning agent, solvent for polyvinyl chloride and purification of mineral oils, alcohol denaturant, leather tanning agent, to locate breaks and leaks in pipes, and in chemical warfare, [HSDB], Petroleum Production and Refining [Category: Industry], Leather Tanning and Processing [Category: Industry], For crotonaldehyde (USEPA, OPP Pesticide Code: 202600) there are 0 labels match., SRP: Not registered for current use in the U.S., but approved pesticide uses may change periodically and so federal, state and local authorities must be consulted for currently approved uses., Crotonaldehyde was formerly used in the manufacture of n-butanol, but currently, the most extensive use of crotonaldehyde is in the manufacture of sorbic acid. Crotonaldehyde has also been used as a warning agent in fuel gases, in the preparation of rubber accelerators, in leather tanning, as an alcohol denaturant, and as a stabilizer for tetraethyl-lead., Manufacture of butyl alcohol, methoxybutyraldehyde, sorbic acid, maleic acid, crotyl alcohol. In polymer chemistry: manufacture of resins and polyvinyl acetals, solvent for polyvinyl chloride, rubber antioxidant, increases rubber strength with ketones. In prepatation of insecticides and fertilizers. In production of flavors., Intermediate for n-butyl alcohol and 2-ethylhexyl alcohol, solvent, preparation of rubber accelerators, purification of lubricating oils, tear gas, fuel-gas warning agent, organic synthesis, leather tanning, alcohol denaturant., CHEM INT FOR N-BUTYL ALCOHOL, QUINALDINE, CROTONIC ACID, SURFACE-ACTIVE AGENTS, TEXTILE & PAPER SIZES, INSECTICIDES & FLAVORING AGENTS, FUEL-GAS WARNING AGENT, SOLVENT FOR POLYVINYL CHLORIDE, ALCOHOL DENATURANT, LEATHER TANNING AGENT, Crotonaldehyde, Industry Uses: Intermediate, Household Products: Information on 1 consumer products that contain Crotonaldehyde in the following categories is provided:, • Auto Products, Methods of Manufacturing: Aldol condensation of two molecules of acetaldehyde., The usual method to produce crotonaldehyde is the aldol reaction of acetaldehyde followed by dehydration of the acetaldol and distillation. Typically the product is about 99% pure., Impurities: 2, 6-di-tert-Butyl-p-cresol, CAS 128-37-0, 0.1 - 1%, Formulations, Preparations: Grades: Technical, 87% water-wet form, Liquid, Assay 92.5% grade, from Eastman Chemical, Commercial product is a 95:5 mixture of trans:cis isomers, Commercial crotonaldehyde is the trans isomer., Commercial product is a 95:5 mixture of trans:cis isomers., Consumption Patterns: 88% IS USED AS AN INT FOR N-BUTANOL, 10% FOR N-BUTYRALDEHYDE, 2% FOR CROTONIC ACID AND SORBIC ACID (1964), The largest use of crotonaldehyde has been in the mfr of n-butanol. This process is still used commercially but has been displaced partially by the oxo process., U.S. Production: 2023: 50, 000 - <250, 000 lb, 2022: 250, 000 - <550, 2021: <50, 2020: 250, (1975) PROBABLY GREATER THAN 9.1X10+5 GRAMS, 2-Butenal is listed as a High Production Volume (HPV) chemical (65FR81686). Chemicals listed as HPV were produced in or imported into the U.S. in >1 million pounds in 1990 and, or 1994. The HPV list is based on the 1990 Inventory Update Rule. (IUR) (40 CFR part 710 subpart B, 51FR21438)., Production volumes for non-confidential chemicals reported under the Inventory Update Rule. [Table#955], Non-confidential 2016 Chemical Data Reporting (CDR) information on the production and use of chemicals manufactured or imported into the United States. Chemical: Crotonaldehyde:, Table: National Aggregate Production Volume (pounds) [Table#956], (1972) PROBABLY GREATER THAN 1.36X10+6 GRAMS, (1975) PROBABLY GREATER THAN 9.08X10+5 GRAMS, U.S. Imports: (1984) 2.1X10+5 g, (1973) 6.02X10+6 GRAMS, General Manufacturing Information: Plastics Material and Resin Manufacturing, 2-Butenal, (2E)-: ACTIVE, 2-Butenal: ACTIVE, Crotonaldehyde ... exists in two stereoisomeric forms: cis-crotonaldehyde and trans-crotonaldehyde. Both isomers are contained in commercially available crotonaldehyde, in which the trans isomer predominates (> 95%) due to its higher thermodynamic stability., Crotonaldehyde is also a byproduct in the synthesis of 1, 3-butylene glycol and in acetic acid synthesis by methanol carbonylation. As a result of incomplete combustion, it is also contained in automobile exhaust gases..
Category: Organic Chemicals.
Independent reference data for Crotonaldehyde (CAS 123-73-9), compiled from public chemistry databases.
| CAS Registry Number | 123-73-9 |
|---|---|
| PubChem CID | 447466 |
| Molecular formula | C4H6O |
| IUPAC name | (E)-but-2-enal |
| UNII (FDA) | 6PUW625907 |
| Molecular Weight | 70.09 |
|---|---|
| XLogP3 | 0.5 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 1 |
| Rotatable Bond Count | 1 |
| Exact Mass | 70.041864811 |
| Monoisotopic Mass | 70.041864811 |
| Topological Polar Surface Area | 17.1 |
| Heavy Atom Count | 5 |
| Boiling Point | 219 °F at 760 mmHg (EPA, 1998) |
|---|---|
| Boiling Point | 219.2 °F at 760 mmHg (EPA, 1998) |
| Boiling Point | 102.2 °C |
| Boiling Point | 104.00 °C. @ 760.00 mm Hg |
| Boiling Point | 104 °C |
| Boiling Point | 219 °F |
| Boiling Point | 102.2 °C @760 [mm Hg] |
| Melting Point | -105 °F (EPA, 1998) |
| Melting Point | -101 °F (EPA, 1998) |
| Melting Point | -69 °C |
CROTONALDEHYDE; 2-Butenal; Crotonal; Crotylaldehyde; (E)-but-2-enal; (2E)-but-2-enal; Crotonic aldehyde; Methylpropenal; 1-Formylpropene; beta-Methylacrolein; Propylene aldehyde; 2-Butenaldehyde; Krotonaldehyd; beta-Methyl acrolein; 4170-30-3; RCRA waste number U053
| Reported hazard statements | H225, H301, H311, H315, H318, H330, H335, H341 |
|---|
H225: Highly Flammable liquid and vapor [Danger Flammable liquids]
H301: Toxic if swallowed [Danger Acute toxicity, oral]
Crotonaldehyde · CAS 123-73-9 · C4H6O. UNII 6PUW625907. Boiling Point: 219 °F at 760 mmHg (EPA, 1998); Boiling Point: 219.2 °F at 760 mmHg (EPA, 1998); Boiling Point: 102.2 °C.
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: 巴豆醛