TANNIC ACID

Synonyms. Tannic acid; Acacia mollissima tannin; Acide tannique; d'Acide tannique; Gallotannic acid; Gallotannin; Glycerite; Liquidambar styraciflua; Quebracho wood extract; Schinopsis lorentzii tannin; Tannin;

TANNIC ACID

 

PRODUCT IDENTIFICATION

CAS RN

1401-55-4

EINECS RN

215-753-2

FORMULA

C76H52O46

MOLE WEIGHT

1701.20

H.S CODE

 3201.90.1000

SMILES

 C1=C(C=C(C(=C1O)O)O)C(=O)OC2=CC(=CC(=C2O)O)C(=O)OCC3C (C (C( C(O3)OC(=O)C4=CC(=C(C(=C4)OC(=O)C5 =CC(=C(C(=C5) O)O)O)O )O)OC(=O)C6=CC(=C( C(=C6)OC(=O)C7=CC(=C(C(=C7)O)O)O)O)O)OC( =O)C8=CC(=C(C(=C8)OC(=O)C9=CC(=C(C(=C9)O)O) O)O)O)OC(= O)C1= CC(=C(C(=C1)OC(=O)C1=CC(=C(C(=C1) O)O)O)O)O

CLASSIFICATION

Phytochemical, Astringent, Gallotannin

EXTRA NOTES

EPA Pesticide Chemical Code 078502
FEMA No. 3042
Overall Carcinogenic Evaluation: Group 3
Polyphenolic compounds with molecular weights of around 500-3000 daltons and containing enough hydroxyl groups (1-2 per 100 MW) for effective cross linking of other compounds (ASTRINGENTS). The two main types are HYDROLYZABLE TANNINS and CONDENSED TANNINS. Historically, the term has applied to many compounds and plant extracts able to render skin COLLAGEN impervious to degradation. The word tannin derives from the Celtic word for OAK TREE which was used for leather processing. TSCA Definition 2008: Gallic acid derivatives found in nutgalls, bark and other plant parts, especially oak bark.[MeSH]
Other RN: 61790-06-5, 67167-65-1, 73891-88-0, 93615-37-3, 1041198-44-0, 1041198-33-7

 

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE.

brown powder

MELTING POINT

218 C (Decomposes)

BOILING POINT

 

DENSITY

 

SOLUBILITY IN WATER

2850 g/l

SOLVENT SOLUBILITY

 

VAPOR DENSITY

 

log P(octanol-water)

  

VAPOR PRESSURE

  

AUTOIGNITION TEMP

  
pK

 

REFRACTIVE INDEX

 

FLASH POINT

 

 

STABILITY AND REACTIVITY
STABILITY Stable under normal conditions.

INCOMPATIBLE MATERIALS

Strong oxidizing agents

POLYMERIZATION

Has not been reported

NFPA RATINGS

Health: 1, Flammability: 0, Reactivity: 0

 

EXTERNAL LINKS & GENERAL DESCRIPTION

USA.gov - Tannic acid

Wikipedia Linking - Tannic acid

Google Scholar Search - Tannic acid

U.S. National Library of Medicine - Tannic acid

PubChem Compound Summary - Tannic acid

KEGG (Kyoto Encyclopedia of Genes and Genomes) -  Tannic acid

http://www.ncbi.nlm.nih.gov/ -  Tannic acid

Hazardous Substances Data Bank - Tannic acid

EPA - Substance Registry Services - Tannic acid

 

SALES SPECIFICATION

APPEARANCE

brown powder

ASSAY

90% min

MELTING POINT

210 C

ASH

0.5% max

LOSS ON DRYING

12% max

HEAVY METALS

10ppm max

 

TRANSPORT & REGULATORY INFORMATION

UN NO.

 

HAZARD CLASS

 

PACKING GROUP  

 

SAFETY INFORMATION

HAZARD OVERVIEW

GHS (Globally Harmonised System) Classification: Not a dangerous substance. Potential Health Effects: Eyes - May cause eye irritation. Skin - May be harmful if absorbed through skin May cause skin irritation. Inhalation - May be harmful if inhaled. May cause respiratory tract irritation. Ingestion - May be harmful if swallowed.

HAZARD CODES

 

RISK PHRASES

 

SAFETY PHRASES

 

 

PACKING

Preserved in light-resistant and well-closed bottles