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Congo Red

Catalog No. 860956 Name Sigma Aldrich
CAS Number 573-58-0 Website http://www.sigmaaldrich.com
M. F. C32H22N6Na2O6S2 Telephone 1-800-521-8956
M. W. 696.66322 Fax
Purity Email
Storage Chembase ID: 102899

SYNONYMS

Title
刚果红
IUPAC name
disodium 4-amino-3-[2-(4-{4-[2-(1-amino-4-sulfonatonaphthalen-2-yl)diazen-1-yl]phenyl}phenyl)diazen-1-yl]naphthalene-1-sulfonate
IUPAC Traditional name
disodium 4-amino-3-[2-(4-{4-[2-(1-amino-4-sulfonatonaphthalen-2-yl)diazen-1-yl]phenyl}phenyl)diazen-1-yl]naphthalene-1-sulfonate
Synonyms
Cotton Red C
Cosmos Red
Congo Red 4B
直接红 R
Direct Red 28
Cotton Red B
Direct Red R
Direct Red Y
刚果红 4B
棉红 B
棉红 C
煮大红
直接红 28
直接红 Y

DATABASE IDS

Beilstein Number 3894858
CAS Number 573-58-0
Color Index Number 22120
MDL Number MFCD00004028
EC Number 209-358-4

PROPERTIES

Compostion Dye content, 85%
Empirical Formula (Hill Notation) C32H22N6Na2O6S2
Grade certified by the Biological Stain Commission
pH Range 3.0 - 5.0, blue to red
Absorption Wavelength λmax 497 nm
Melting Point >360 °C(lit.)
GHS Pictograms GHS08
GHS Signal Word Danger
GHS Hazard statements H350-H361d
European Hazard Symbols Toxic Toxic (T)
MSDS Link Download
Personal Protective Equipment Eyeshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges
GHS Precautionary statements P201-P281-P308 + P313
Risk Statements 45-63
RTECS QK1400000
Safety Statements 53-45
German water hazard class 3

DETAILS

Description (English)
Packaging
5, 25 g in glass bottle
Description (简体中文)
包装
5, 25 g in glass bottle

REFERENCES