Crotonaldehyde (trans predominantly)
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- $40 - $485
- Product name: Crotonaldehyde (trans predominantly)
- CAS: 123-73-9
- MF: C4H6O
- MW: 70.09
- EINECS:204-647-1
- MDL Number:MFCD00007003
- Synonyms:crotonaldehyde,(e)-00 ;E-Crotonaldehyde ;NCI-C56279;Topanel;Topanel CA;CROTONALDEHYDE, 90%, PREDOMINANTLY TRANS;CROTONALDEHYDE STABILIZED;CROTONALDEHYDE, 98%, PREDOMINANTLY TRANS
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Brand
- AHH
- Matrix Scientific
- Oakwood
- Sigma-Aldrich
- TRC
Package
- 100mg
- 250mg
- 500mg
- 2.500g
- 5g
- 5ml
- 25g
- 100g
- 100ml
- 1l
- ManufacturerAHH
- Product numberMT-06857
- Product descriptionCrotonaldehyde 98%
- Packaging100g
- Price$343
- Updated2021-12-16
- Buy
- ManufacturerAHH
- Product numberMT-06857
- Product descriptionCrotonaldehyde 97%
- Packaging100g
- Price$343
- Updated2026-05-25
- Buy
- ManufacturerAHH
- Product numberMT-06857
- Product descriptionCrotonaldehyde 97%
- Packaging100g
- Price$343
- Updated2026-05-26
- Buy
- ManufacturerMatrix Scientific
- Product number133722
- Product description(2E)-But-2-enal 95%+
- Packaging2.500g
- Price$215
- Updated2021-12-16
- Buy
- ManufacturerMatrix Scientific
- Product number133722
- Product description(2E)-But-2-enal 95%+
- Packaging100mg
- Price$53
- Updated2021-12-16
- Buy
- ManufacturerMatrix Scientific
- Product number133722
- Product description(2E)-But-2-enal 95%+
- Packaging500mg
- Price$87
- Updated2021-12-16
- Buy
- ManufacturerOakwood
- Product number245633
- Product descriptionCrotonaldehyde 95%
- Packaging25g
- Price$80
- Updated2021-12-16
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- ManufacturerOakwood
- Product number245633
- Product descriptionCrotonaldehyde 95%
- Packaging5g
- Price$40
- Updated2021-12-16
- Buy
- ManufacturerSigma-Aldrich
- Product number262668
- Product descriptionCrotonaldehyde, predominantly trans ≥99%, contains 0.1-0.2% BHT as stabilizer, 1% H
- Packaging5ml
- Price$56.8
- Updated2026-04-30
- Buy
- ManufacturerSigma-Aldrich
- Product number262668
- Product descriptionCrotonaldehyde, predominantly trans ≥99%, contains 0.1-0.2% BHT as stabilizer, 1% H
- Packaging100ml
- Price$103
- Updated2026-04-30
- Buy
- ManufacturerSigma-Aldrich
- Product number262668
- Product descriptionCrotonaldehyde, predominantly trans ≥99%, contains 0.1-0.2% BHT as stabilizer, 1% H
- Packaging1l
- Price$485
- Updated2026-04-30
- Buy
- ManufacturerTRC
- Product numberTRC-B703915-250MG
- Product description(E)-2-Butenal (~0.1% MEHQ)
- Packaging250mg
- Price$65
- Updated2026-06-03
- Buy
- ManufacturerTRC
- Product numberTRC-B703915-500MG
- Product description(E)-2-Butenal (~0.1% MEHQ)
- Packaging500mg
- Price$72
- Updated2026-06-03
- Buy
- ManufacturerTRC
- Product numberB703915
- Product description(E)-2-Butenal(~0.1%MEHQ)
- Packaging250mg
- Price$45
- Updated2021-12-16
- Buy
| Manufacturer | Product number | Product description | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|
| AHH | MT-06857 | Crotonaldehyde 98% | 100g | $343 | 2021-12-16 | Buy |
| AHH | MT-06857 | Crotonaldehyde 97% | 100g | $343 | 2026-05-25 | Buy |
| AHH | MT-06857 | Crotonaldehyde 97% | 100g | $343 | 2026-05-26 | Buy |
| Matrix Scientific | 133722 | (2E)-But-2-enal 95%+ | 2.500g | $215 | 2021-12-16 | Buy |
| Matrix Scientific | 133722 | (2E)-But-2-enal 95%+ | 100mg | $53 | 2021-12-16 | Buy |
| Matrix Scientific | 133722 | (2E)-But-2-enal 95%+ | 500mg | $87 | 2021-12-16 | Buy |
| Oakwood | 245633 | Crotonaldehyde 95% | 25g | $80 | 2021-12-16 | Buy |
| Oakwood | 245633 | Crotonaldehyde 95% | 5g | $40 | 2021-12-16 | Buy |
| Sigma-Aldrich | 262668 | Crotonaldehyde, predominantly trans ≥99%, contains 0.1-0.2% BHT as stabilizer, 1% H | 5ml | $56.8 | 2026-04-30 | Buy |
| Sigma-Aldrich | 262668 | Crotonaldehyde, predominantly trans ≥99%, contains 0.1-0.2% BHT as stabilizer, 1% H | 100ml | $103 | 2026-04-30 | Buy |
| Sigma-Aldrich | 262668 | Crotonaldehyde, predominantly trans ≥99%, contains 0.1-0.2% BHT as stabilizer, 1% H | 1l | $485 | 2026-04-30 | Buy |
| TRC | TRC-B703915-250MG | (E)-2-Butenal (~0.1% MEHQ) | 250mg | $65 | 2026-06-03 | Buy |
| TRC | TRC-B703915-500MG | (E)-2-Butenal (~0.1% MEHQ) | 500mg | $72 | 2026-06-03 | Buy |
| TRC | B703915 | (E)-2-Butenal(~0.1%MEHQ) | 250mg | $45 | 2021-12-16 | Buy |
Properties
Melting point :−76 °C(lit.)
Boiling point :104 °C(lit.)
Density :0.853 g/mL at 20 °C(lit.)
vapor density :2.41 (vs air)
vapor pressure :32 mm Hg ( 20 °C)
refractive index :n20/D 1.437
Flash point :48 °F
storage temp. :2-8°C
solubility :water: soluble425.4g/L at 20°C
form :Liquid
color :Clear
Odor :Pungent
explosive limit :19.5%
Water Solubility :150 g/L (20 ºC)
Merck :14,2596
BRN :906731
Henry's Law Constant :5.4×10-1 mol/(m3Pa) at 25℃, Brockbank (2013)
Exposure limits :TLV-TWA 6 mg/m3 (2 ppm)(ACGIH); IDLH 400 ppm (NIOSH).
Stability :Light Sensitive
Cosmetics Ingredients Functions :FRAGRANCE
PERFUMING
ANTIOXIDANT InChIKey :MLUCVPSAIODCQM-NSCUHMNNSA-N
LogP :0.600
CAS DataBase Reference :123-73-9(CAS DataBase Reference)
NIST Chemistry Reference :Crotonaldehyde(123-73-9)
EPA Substance Registry System :trans-Crotonaldehyde (123-73-9)
Boiling point :104 °C(lit.)
Density :0.853 g/mL at 20 °C(lit.)
vapor density :2.41 (vs air)
vapor pressure :32 mm Hg ( 20 °C)
refractive index :n
Flash point :48 °F
storage temp. :2-8°C
solubility :water: soluble425.4g/L at 20°C
form :Liquid
color :Clear
Odor :Pungent
explosive limit :19.5%
Water Solubility :150 g/L (20 ºC)
Merck :14,2596
BRN :906731
Henry's Law Constant :5.4×10-1 mol/(m3Pa) at 25℃, Brockbank (2013)
Exposure limits :TLV-TWA 6 mg/m3 (2 ppm)(ACGIH); IDLH 400 ppm (NIOSH).
Stability :Light Sensitive
Cosmetics Ingredients Functions :FRAGRANCE
PERFUMING
ANTIOXIDANT InChIKey :MLUCVPSAIODCQM-NSCUHMNNSA-N
LogP :0.600
CAS DataBase Reference :123-73-9(CAS DataBase Reference)
NIST Chemistry Reference :Crotonaldehyde(123-73-9)
EPA Substance Registry System :trans-Crotonaldehyde (123-73-9)
Safety Information
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Description
Crotonaldehyde (2-butenal, β-methyl acrolein, propylene aldehyde) is similar in structure to acrolein, as both are α,β-unsaturated aldehydes. This structural similarity leads to similar sensitizing and irritating properties of the two compounds. Crotonaldehyde is used industrially in the preparation of other chemicals (chiefly sorbic acid), flavoring agents, and can form endogenously and in the environment.Crotonaldehyde is used in the manufacture ofbutyl alcohol, butyraldehyde, and in severalorganic synthesis.
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