Food additives, sugars and sweeteners
Vanillin vs ethyl vanillin
Vanillin (C8H8O3, CAS 121-33-5) and ethyl vanillin (C9H10O3, CAS 121-32-4) are both listed under flavor ingredients.
Vanillin has a molar mass of 152.15 g/mol, ethyl vanillin 166.18 g/mol.
Measured boiling points are 285 °C for vanillin and 285 °C for ethyl vanillin.
Both carry the GHS signal word Warning.
On CompoundList, 289 suppliers list vanillin and 139 suppliers list ethyl vanillin.
Data last updated 7 October 2026
 |  | |
|---|---|---|
| Identity | ||
| Name in our database | Vanillin | Ethylvanillin |
| CAS number | 121-33-5 | 121-32-4 |
| Molecular formula | C8H8O3 | C9H10O3 |
| Molar mass | 152.15 g/mol | 166.18 g/mol |
| IUPAC name | 4-hydroxy-3-methoxybenzaldehyde | 3-ethoxy-4-hydroxybenzaldehyde |
| EC number | 204-465-2 | 204-464-7 |
| Physical properties | ||
| Appearance | White crystalline needles from water | Fine, crystalline needles |
| Melting point | 81 to 83 | 76.7 °C |
| Boiling point | 285 °C | 285 °C |
| Density | 1.06 g/cm³ | Not recorded |
| Flash point | 153 °C | 145 °C |
| Solubility | In water, 1.102 × 10⁺⁴ mg/L at 25 °C | In water, 2,822 mg/L at 25 °C |
| LogP (octanol/water)Computed from the structure | 1.21 | 1.6 |
| Safety (GHS) | ||
| Signal word | Warning | Warning |
| Pictograms | ||
| Hazard statements |
|
|
| Uses and classification | ||
| Uses and functions |
|
|
| Category | Flavors and fragrances › Flavor ingredients | Flavors and fragrances › Flavor ingredients |
| HS code | 291241Vanillin (4-hydroxy-3-methoxybenzaldehyde) | 291242Ethylvanillin (3-ethoxy-4-hydroxybenzaldehyde) |
| Market on CompoundList | ||
| Suppliers | 289 suppliers | 139 suppliers |
| Supplier countries | 38 countries, most in China, United States, India | 25 countries, most in China, United States, India |
| Price rangeOnly prices set by suppliers who manage their own profile | Price on request | Price on request |
Measured and computed values as shown on each chemical page, plus live listings on CompoundList. Details may have changed, please confirm them with the supplier. Safety data is a summary, not an SDS.
More comparisons
Other common chemical pairs, compared the same way.