Synonyms: MMB; 3-Mercapto-3-methylbutanol; 3-Methyl-3-sulfanylbutan-1-ol; Mercaptomethylbutanol
CAS No.: 34300-94-2 | EC No.: 629-355-5 | FEMA No.: 3854 | JECFA No.: 544 |
Molecular Formula: C₅H₁₂OS | Molecular Weight: 120.21 |
MMB (3-Mercapto-3-methyl-1-butanol) is a high-impact organosulfur flavor ingredient with an extremely low odor threshold. In higher dilutions it delivers powerful meaty, beef-juice and gravy notes essential for savory and roasted profiles; at trace levels (around 0.02 ppm) it contributes natural grapefruit and tropical nuances valued in citrus, passion-fruit and beverage applications.
XG Chem supplies MMB as neat material (≥98%, FEMA GRAS) and as ready-to-use dilutions in propylene glycol or triacetin, with COA issued for every batch and samples available for flavorist evaluation.
Item | Specification |
Appearance | Colorless to pale yellow clear liquid |
Purity (GC) | ≥ 98 % (higher purity on request) |
Relative density (20 °C) | 0.983 – 0.989 |
Refractive index (n²⁰D) | 1.480 – 1.490 |
Flash point | ≈ 62 – 69 °C |
Regulatory status | FEMA 3854 (GRAS); JECFA 544; EU Regulation 1334/2008 |
COA with every batch; samples in sealed ampoules or small bottles available for lab evaluation.
Savory flavors – key contributor of meaty, beef-juice, gravy and roasted notes for seasonings, soups and snack foods
Beverages & citrus profiles – trace-level grapefruit, passion-fruit and tropical nuances (typically 0.01–0.05 ppm)
Coffee & roasted flavors – sulfury nuance found naturally in coffee aromas
Compounded flavors – dosing per applicable local regulations (e.g., FEMA usage levels 0.01–0.5 mg/kg depending on food category)
Neat (≥98%): 1 kg / 5 kg aluminum bottles or fluorinated HDPE bottles; 25 kg drums
Dilutions (1% / 10% in propylene glycol or triacetin): easier dosing and more stable handling — recommended for flavor houses; packed in 25 kg pails or drums
All packaging nitrogen-blanketed and tightly sealed
Store at 2 – 8 °C, protected from light and air — thiols slowly oxidize to disulfides on exposure, so keep containers unopened until use
Strong odor: handle in well-ventilated areas with appropriate PPE; keep away from oxidizers
Use dilutions where possible for safer, cleaner weighing at trace dosage levels
Neat and dilution forms with flexible purity and packaging
COA with every batch; consistent quality batch to batch
Small-quantity support for flavor creation and sample evaluation
Dedicated support on specification matching and batch data verification
Jinan Xinggao Chemical Technology Co., Ltd. (XG Chem)
Email: sales06@xinggaochem.com Website: www.xgchemicals.com
Tell us the form (neat or dilution), quantity and application — we will reply with a quotation within 24 hours.