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4-(Methylthio)-4-methyl-2-pentanone

At a glance

According to The Good Scents Company, this material has an odor type of sulfurous, with descriptor tags: sulfurous, green, metallic, musty, rooty, fruity, tropical, currant bud black currant bud, sulfurous, green, metallic, musty, rooty, fermented, fruity, tropi… (CAS 23550-40-5)

Why synthetics aren't a downgrade — a different toolkit → · Why some materials get IFRA-restricted →

Category
⚗️ Synthetic
Extraction
Chemical synthesis
Chemical family
Ketone
CAS number
23550-40-5
Structure
2D molecular structure of 4-(Methylthio)-4-methyl-2-pentanone
Profile
sulfurous, green, metallic, musty, rooty, fruity, tropical, currant bud black currant bud, sulfurous, green, metallic, musty, rooty, fermented, fruity, tropical
IFRA status
Not restricted
Related nodes Part of the Black Amber note Part of the Black Cherry note Part of the Black Currant note Part of the Black Hemlock note Part of the Black Locust note Part of the Black Locust Honey note Part of the Black Musk note Part of the Black Orchid note Part of the Black Orchid ('ghost Orchid' Accord) note Part of the Black Pepper note +23 more
● drafted · last checked 2026-09-01