1401-55-4
Product Name:
Tannic acid
Formula:
C76H52O46
Synonyms:
Gallotannin;Tannic acid;Tannin
Inquiry
CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Tannic acid is a light yellow to tan solid with a faint odor. Sinks and mixes with water. (USCG, 1999) |
|---|---|
| Color/Form | YELLOWISH-WHITE TO LIGHT BROWN, AMORPHOUS, BULKY POWDER OR FLAKES, OR SPONGY MASSES |
| Odor | FAINT CHARACTERISTIC ODOR |
| Taste | ASTRINGENT TASTE |
| Melting Point | 200 °C |
| Flash Point | 390 °F |
| Solubility | VERY SOL IN ALCOHOL, ACETONE; INSOL IN ETHER, BENZENE, CHLOROFORM & CARBON DISULFIDE |
| Density | greater than 1 at 68 °F (USCG, 1999) |
| Stability/Shelf Life | AQ SOLN SHOULD BE FRESHLY PREPARED BECAUSE THEY ARE UNSTABLE DUE TO BACTERIAL ACTION & IN PRESENCE OF LIGHT & OXYGEN. |
| Autoignition Temperature | 980 °F (USCG, 1999) |
| Decomposition | When heated to decomp ... emits acrid smoke and fumes. |
| Other Experimental Properties | AQ SOLN DECOMP ON HEATING; REPORTED TO CATALYSE FORMATION OF NITROSODIETHYLAMINE |
| Chemical Classes | UVCB |
SAFETY INFORMATION
| Signal word | Warning |
|---|---|
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H303:Acute toxicity,oral |
| Precautionary Statement Codes |
P270:Do not eat, drink or smoke when using this product. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P403:Store in a well-ventilated place. |
COMPUTED DESCRIPTORS
| Molecular Weight | 1701.2 g/mol |
|---|---|
| XLogP3 | 6.2 |
| Hydrogen Bond Donor Count | 25 |
| Hydrogen Bond Acceptor Count | 46 |
| Rotatable Bond Count | 31 |
| Exact Mass | 1700.1729741 g/mol |
| Monoisotopic Mass | 1700.1729741 g/mol |
| Topological Polar Surface Area | 778 Ų |
| Heavy Atom Count | 122 |
| Formal Charge | 0 |
| Complexity | 3570 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 5 |
| 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
Tannic acid has antioxidant properties and may promote good health. It is being studied in the prevention of cancer, heart disease, and other diseases. It is also used in certain medicines, fabrics, leather, and ink. Tannic acid is a type of polyphenol.