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Properties of substance:
indigo carmine
skc-file
Synonyms:
5,5’-indigodisulfonic acid disodium salt
indigotine
indigo soluble
Group of substances:
organic
Physical appearance:
deep blue powder
Empirical formula (Hill's system for organic substances):
C
1
6
H
8
N
2
Na
2
O
8
S
2
Molar/atomic mass: 466.353
Melting point (°C):
250
CAS №: 860-22-0
Solubility (g/100 g of solvent):
benzene
: insoluble [
Ref.
]
chloroform
: insoluble [
Ref.
]
ethanol
: sparingly soluble [
Ref.
]
water
: 1 (25°C) [
Ref.
]
LD
50
(mg/kg):
2000 (rats, oral)
93 (rats, intravenous)
2500 (mice, oral)
405 (mice, subcutaneous)
References:
CRC Handbook of Chemistry and Physics. - 95ed. - CRC Press, 2014. - pp. 3-320
Dictionary of Food Compounds with CD-ROM. - 2nd ed. - CRC Press, 2013. - pp. 1082
Gangolli S. The Dictionary of Substances and their Effects. - 2 ed., Vol. 4, E-J. - RSC, 1999. - pp. 748-749
Lewis R.J. Sax's Dangerous Properties of Industrial Materials. - 12ed., Vol. 1-5. - Wiley, 2012. - pp. 2130-2131
Sabnis R.W. Handbook of Biological Dyes and Stains. - Wiley, 2010. - pp. 239-242
The Merck Index 11th ed., Merck & Company, 1989. - pp. 784
Краткая химическая энциклопедия. - Т. 2: Ж-Малоновый эфир. - М.: Советская энциклопедия, 1963. - pp. 243-244 [Russian]
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© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru