Interactive IRUG Spectrum

Details

IRUG filename:
IOD00186
Data type:
Infrared
IRUG material class:
Organic dyes and pigments (OD)
Sample type:
Reference material
Common name(s):
Tannic acid, Gallotannin, Natural Brown 6, CI75215
CAS name:
Tannins
Sample source 1:
Helmut Schweppe Collection of Early Synthetic Dyes
Source location 1:
BASF, Ludwigshafen, Germany
Sample identifier 1:
Tannic acid
Sample source 2:
Getty Conservation Institute
Source location 2:
The Getty Center, 1200 Getty Center Drive, Los Angeles, CA, US
Sample identifier 2:
Tannic acid
Color:
Beige to brown, light
Age:
1986, acquired
MW (relative):
1701.20, literature
Application:
DRIFTS (diffuse reflectance infrared Fourier transform spectroscopy)
Mode:
Refl
Originating institution name:
Getty Conservation Institute
Originating institution acronym:
GCI
Molecular formula:
C76 H52 O46
CAS registry no:
1401-55-4

Related Structure(s)

IRUG Structure Tracking #: 405
Common Name(s): Tannic acid; Gallotannin
CAS Name: 2,3-dihydroxy-5-({[(2R,3R,4S,5R,6R)-3,4,5,6-tetrakis({3,4-dihydroxy-5-[(3,4,5-trihydroxyphenyl)carbonyloxy]phenyl}carbonyloxy)oxan-2-yl]methoxy}carbonyl)phenyl 3,4,5-trihydroxybenzoate
CAS Registry No: 1401-55-4
IRUG Material Class: Organic dyes and pigments (OD)
Molecular Formula: C76 H52 O46
MW: 1701.19