3,5,5-TRIMETHYLHEXANAL
Synonym(s):Green hexanal
- CAS NO.：5435-64-3
- Empirical Formula: C9H18O
- Molecular Weight: 142.24
- MDL number: MFCD00010441
- EINECS: 226-603-0
- SAFETY DATA SHEET (SDS)
- Update Date: 2025-12-17 09:50:02
What is 3,5,5-TRIMETHYLHEXANAL?
Chemical properties
3,5,5-Trimethylhexanal has an aldehydic odor.
The Uses of 3,5,5-TRIMETHYLHEXANAL
3,5,5-Trimethylhexanal was used in preparation of gem-dithiols via reaction with hydrogen sulfide.
The Uses of 3,5,5-TRIMETHYLHEXANAL
3,5,5-Trimethylhexanal has been suggested for use in perfume compositions as a very powerful masking agent. In extreme dilution, its odor is generally considered pleasant, but the opinion is not unanimous. It has found extensive use as the main active ingredient in various types of masking odors, room fresheners, deodorizers, etc. It is relatively stable against oxidation and polymerization, but it will produce intensely yellow colored condensation products with Anthranilates, darker with Quinolines or Indoles. However, it is rarely used in connection with those materials, more often with alifatic aldehydes, Monoterpenes, Pine fragrance materials, etc.
Preparation
From diisobutylene via the oxo reaction.
Definition
ChEBI: 3,5,5-Trimethylhexanal is a fatty aldehyde.
Flammability and Explosibility
Flammable
Properties of 3,5,5-TRIMETHYLHEXANAL
| Melting point: | -18°C (estimate) |
| Boiling point: | 67-68 °C/2.5 mmHg (lit.) |
| Density | 0.817 g/mL at 25 °C (lit.) |
| vapor pressure | 2.7hPa at 20℃ |
| FEMA | 3524 | 3,5,5-TRIMETHYLHEXANAL |
| refractive index | n |
| Flash point: | 116 °F |
| storage temp. | Inert atmosphere,Store in freezer, under -20°C |
| form | clear liquid |
| color | Colorless to Light yellow |
| Specific Gravity | 0.822 |
| Odor | at 10.00 % in dipropylene glycol. aldehydic dry grassy weedy green citrus fatty natural |
| Water Solubility | 100mg/L at 20℃ |
| JECFA Number | 269 |
| CAS DataBase Reference | 5435-64-3(CAS DataBase Reference) |
| EPA Substance Registry System | Hexanal, 3,5,5-trimethyl- (5435-64-3) |
Safety information for 3,5,5-TRIMETHYLHEXANAL
| Signal word | Warning |
| Pictogram(s) |
 Flame Flammables GHS02  Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H226:Flammable liquids H315:Skin corrosion/irritation H317:Sensitisation, Skin H412:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. |
Computed Descriptors for 3,5,5-TRIMETHYLHEXANAL
New Products
4,4-Difluoropiperidine hydrochloride tert-butyl 9-methoxy-3-azaspiro[5.5]undecane-3-carboxylate Indole Methyl Resin N-Isopropylurea N,N-Dicyclohexylcarbodiimide(DCC) MELDRUMS ACID 5-METHYLISOXAZOLE-4-CARBOXYLIC ACID Magnessium Bis glycinate Zinc ascorbate 1-bromo-2-butyne 2-acetamidophenol 9(10H)-anthracenone Erythrosin B, 4-Piperidinopiperidine 2-((4-morpholinophenylamino) (methylthio) methylene) malononitrile 2,4-dihydroxybenzaldehyde 3-(4-morpholinophenylamino)-5-amino-1H-pyrazole-4-carbonitrile Methyl 2-methylquinoline-6-carboxylate 2,6-dichloro-4-nitropyridine 4-Bromo-2-chlorobenzonitrile 2-(benzylamino)acetic acid hydrochloride 4-(tert-Butoxycarbonylamino)but- 2-ynoic acid 3,4-dihydro-2H-benzo[b][1,4]dioxepine 1-Phenyl-1-cycloprppanecarboxylicacidRelated products of tetrahydrofuran
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