N-Butyl 2-Methylbutyrate
Aroma Chemical Top Note CAS 15706-73-7
A fruity green note with a tropical character and a soft celery facet. Jammy and natural, it adds a peach grassy lift to compositions.
Odor profile
| Note | Top Note |
| Descriptor 1 | Fruity |
| Descriptor 2 | Green |
| Descriptor 3 | Cocoa |
| Impact Level | Medium |
| Tenacity2 | 2 h |
2 Source: The Good Scents Company
Identification
| CAS Number | 15706-73-7 |
| INCI Name | Butyl 2-methylbutyrate |
| Category | Aroma Chemical |
| Formula | C9H18O2 |
| Mol. Weight | 158.24 |
| IUPAC Name | butyl 2-methylbutanoate |
| InChIKey | OTKQNSSMCDLVQV-UHFFFAOYSA-N |
Synonyms
butanoic acid, 2-methyl-, butyl ester, butyl 2 methyl butyrate, butyl 2-methyl butanoate, alpha-butyl 2-methyl butylate, butyl 2-methyl butyrate natural, butyl 2-methyl butyrate pure, butyl 2-methylbutanoate, a-butyl 2-methylbutylate, butyl 2-methylbutyrate, butyl 2-methylbutyrate natural, butyl-2-methyl butyrate, N-butyl-2-methyl butyrate, butyl-2-methyl butyrate natural, butyl-2-methyl butyrate, natural, butyl-2-methylbutyrate, N-butyl-2-methylbutyrate, butyl-D-2-methyl butyrate, butyl-D-2-methyl butyrate natural, butyric acid, 2-methyl-, butyl ester, 2-methyl butanoic acid butyl ester, 2-methyl butyric acid butyl ester, 2-methylbutanoic acid butyl ester, starfruit butyrate
Physical and chemical data
| Boiling Point | 179.00 °C |
| Flash Point | 57.22 °C |
| Density | 0.85600 |
| Refractive Index | 1.40200 |
| Vapor Pressure | 1.090000 mmHg @ 25.00 C. (est) |
| LogP | 3.177 |
| Solubility | alcohol; water, 117.8 mg/L @ 25 C (est); For experimental / research use only. |
| Appearance | colorless clear liquid |
Regulatory status
IFRA maximum concentrations
| Category | Use | Limit in the finished product |
|---|---|---|
| Category 1 | Lip products, toys | 0.54 % |
| Category 2 | Deodorants, antiperspirants | 0.16 % |
| Category 3 | Eye products | 3.2 % |
| Category 4 | Fine fragrance | 3.0 % |
| Category 5A | Body lotion | 0.76 % |
| Category 5B | Face cream | 0.76 % |
| Category 5C | Hand cream | 0.76 % |
| Category 5D | Baby creams, oils | 0.25 % |
| Category 6 | Oral care, mouthwash | 1.8 % |
| Category 7A | Rinse-off hair products | 6.1 % |
| Category 7B | Leave-on hair products | 6.1 % |
| Category 8 | Intimate and baby wipes | 0.25 % |
| Category 9 | Soap, shampoo, rinse-off | 5.9 % |
| Category 10A | Household care, hand contact | 21 % |
| Category 10B | Aerosol air fresheners | 21 % |
| Category 11A | Intended skin contact | 0.25 % |
| Category 11B | Minimal skin contact | 0.25 % |
| Category 12 | No skin contact, candles | Not restricted |
| IFRA Amendment | 52 |
| Restriction Type | Restriction |
| Critical Effect | Dermal Sensitization And Systemic Toxicity |
All figures on this page are guide values collected from public reference works and supplier declarations. They differ between batches, origins and qualities. The data sheet of your own supplier is always the authoritative document for the material you actually use.