121-79-9
Product Name:
Propyl gallate
Formula:
C10H12O5
Synonyms:
3,4,5-Trihydroxybenzoic acid propyl ester;PG;Propyl 3,4,5-trihydroxybenzoate;Propyl gallate, Gallic acid propyl ester, 3,4,5-Trihydroxybenzoic acid propyl ester
Inquiry
CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Propyl gallate appears as fine white to creamy-white crystalline powder. Odorless or with a faint odor. Melting point 150 °C. Insoluble in water. Slightly bitter taste. |
|---|---|
| Color/Form | White to creamy-white crystalline powder |
| Odor | Odorless |
| Taste | Slightly bitter taste |
| Boiling Point | Decomposes (NTP, 1992) |
| Melting Point | 302 °F (NTP, 1992) |
| Flash Point | 368 °F (NTP, 1992) |
| Solubility | less than 1 mg/mL at 68 °F (NTP, 1992) |
| Density | 1.21 (NTP, 1992) - Denser than water; will sink |
| Vapor Density | 7.3 (NTP, 1992) - Heavier than air; will sink (Relative to Air) |
| LogP | log Kow = 1.80 |
| Stability/Shelf Life | Stable under recommended storage conditions. |
| Decomposition | When heated to decomposition it emits acrid smoke and irritating fumes. |
| pH | pH = 6.3 (0.05% aqueous solution); pH = 5.9 (0.1% aqueous solution); pH = 5.7 (0.2% aqueous solution) |
| Dissociation Constants | pKa = 7.94 |
| Other Experimental Properties | Darkens in presence of iron and iron salts |
| Chemical Classes | Other Uses -> Preservatives |
SAFETY INFORMATION
| Signal word | Danger |
|---|---|
| Pictogram(s) |
 Corrosion Corrosives GHS05  Exclamation Mark Irritant GHS07  Environment GHS09 |
| GHS Hazard Statements |
H302:Acute toxicity,oral H317:Sensitisation, Skin H318:Serious eye damage/eye irritation H410:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
COMPUTED DESCRIPTORS
| Molecular Weight | 212.20 g/mol |
|---|---|
| XLogP3 | 1.8 |
| Hydrogen Bond Donor Count | 3 |
| Hydrogen Bond Acceptor Count | 5 |
| Rotatable Bond Count | 4 |
| Exact Mass | 212.06847348 g/mol |
| Monoisotopic Mass | 212.06847348 g/mol |
| Topological Polar Surface Area | 87 Ų |
| Heavy Atom Count | 15 |
| Formal Charge | 0 |
| Complexity | 206 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| Covalently-Bonded Unit Count | 1 |
| Compound Is Canonicalized | Yes |
PRODUCT INTRODUCTION
description
Propyl gallate appears as fine white to creamy-white crystalline powder. Odorless or with a faint odor. Melting point 150 °C. Insoluble in water. Slightly bitter taste.