W331007

Methyl thiobutyrate

≥97%, FG

• Synonym(s): S-Methyl thiobutanoate, S-Methyl thiobutyrate
• Linear Formula: CH₃CH₂CH₂COSCH₃
• CAS Number: 2432-51-1
• Molecular Weight: 118.20
• FEMA Number: 3310
• EC Number: 219-407-1
• Council of Europe no.: 2328
• MDL number: MFCD00009872
• UNSPSC Code: 12164502
• PubChem Substance ID: 24901630
• Flavis number: 12.032
• NACRES: NA.21

Properties

• biological source: synthetic
• Quality Level: 400
• grade: FG; Fragrance grade; Halal; Kosher
• Agency: follows IFRA guidelines
• reg. compliance: EU Regulation 1223/2009; EU Regulation 1334/2008 & 178/2002
• Assay: ≥97%
• refractive index: n20/D 1.461 (lit.)
• bp: 142-143 °C/757 mmHg (lit.)
• density: 0.966 g/mL at 25 °C (lit.)
• application(s): flavors and fragrances
• Documentation: see Safety & Documentation for available documents
• food allergen: no known allergens
• fragrance allergen: no known allergens
• Organoleptic: cheese; musty; sulfurous
• SMILES string: CCCC(=O)SC
• InChI: 1S/C5H10OS/c1-3-4-5(6)7-2/h3-4H2,1-2H3
• InChI key: GRLJIIJNZJVMGP-UHFFFAOYSA-N

Description

Application

• RIFM fragrance ingredient safety assessment, methyl thiobutyrate, CAS Registry Number 2432-51-1.: This study reviews the safety of methyl thiobutyrate as a fragrance ingredient, evaluating its toxicity and potential effects in various applications (Api et al., 2020).


• Carboxylesterase activity, cDNA sequence, and gene expression in malathion susceptible and resistant strains of the cotton aphid, Aphis gossypii.: The study examines the role of carboxylesterases in pesticide resistance, with methyl thiobutyrate used to characterize enzyme activity (Pan et al., 2009).


• Odorant and pheromone binding by aphrodisin, a hamster aphrodisiac protein.: Research on aphrodisin′s binding properties includes the evaluation of methyl thiobutyrate as a potential ligand, contributing to the understanding of pheromone signaling mechanisms (Briand et al., 2000).

Safety Information

• Pictograms: GHS02,GHS07
• Signal Word: Warning
• Hazard Statements: H226 - H315 - H319 - H335
• Precautionary Statements: P210 - P233 - P240 - P241 - P303 + P361 + P353 - P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2 - Flam. Liq. 3 - Skin Irrit. 2 - STOT SE 3
• Target Organs: Respiratory system
• Storage Class Code: 3 - Flammable liquids
• WGK: WGK 3
• Flash Point(F): 93.2 °F - closed cup
• Flash Point(C): 34 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves