Indigo Carmine
Synonym(s):Acid Blue 74;Carmine Blue;Indigo Carmine;Indigo-5,5′-disulfonic acid disodium salt;Indigocarmine
- CAS NO.:860-22-0
- Empirical Formula: C16H11N2NaO8S2
- Molecular Weight: 446.38
- MDL number: MFCD00005723
- EINECS: 212-728-8
- SAFETY DATA SHEET (SDS)
- Update Date: 2023-04-23 13:52:06
What is Indigo Carmine?
Description
Indigo carmine is indigotindisulfonate sodium, a marker dye used during cystoscopy and ureteral catheterization.
(1) Indigo carmine is also used in endoscopic procedures, lymph node and vessel delineation, and for tumor localization. Indigo carmine is an unapproved drug without FDA approved labeling.
(2) There is no single dye that can replace indigo carmine. Choice of alternative agent will depend on type of procedure and physician discretion, as well as product availability.
Indigo Carmine (IC) is the most common chemical dye for clothes dyeing, which is considered as a refractory molecule since it is required a rather strong chemical treatment for its elimination from the water waste. The presence of this dye in residuals causes notorious change of water color and smell even in very low concentration. Moreover, if some of this water reaches natural streams it can be toxic for aquatic living entities due to the formation of toxic compounds such as aromatic amines.
The Uses of Indigo Carmine
Indigo Carmine (FD&C Blue #2) is a colorant. It has poor ph stability in that after 1 week at ph 3 and 5 it will appreciably fade, at ph 7 considerably fade, and at ph 8 fade completely. It is the least soluble of all food colors, with a solubility of 1.6 g in 100 ml of water at 25°c. Complete fading occurs in alkalis such as 10% sodium carbonate and 10% sodium hydroxide, with fading also occurring in 10% sugar systems. It has very poor light stability and oxidation stability, and moderate stability to heat; it has a deep blue hue with poor tinctorial strength. It is the only food color that has good resistance to reducing agents, but has very poor compatibility with food components. The major use is in pet food, but it is also used in candies, confections, and baked goods. The common name is indigotine.
What are the applications of Application
Indigo carmine is a tissue stain, pH indicator, and tool for the determination of hypochlorite
Properties of Indigo Carmine
Melting point: | >300°C |
Density | 1.01 g/mL at 20 °C |
storage temp. | room temp |
solubility | 1g/l |
form | Powder/Solid |
color | Very dark blue to purple |
Odor | Light odour |
Water Solubility | 1 g/100 mL (25 ºC) |
Sensitive | Light Sensitive |
Safety information for Indigo Carmine
Signal word | Warning |
Pictogram(s) |
Exclamation Mark Irritant GHS07 |
GHS Hazard Statements |
H317:Sensitisation, Skin |
Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P272:Contaminated work clothing should not be allowed out of the workplace. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. P333+P313:IF SKIN irritation or rash occurs: Get medical advice/attention. |
Computed Descriptors for Indigo Carmine
Abamectin manufacturer
Arnish Laborates Pvt Ltd
Dishman Carbogen Amcis Ltd (Dishman Group)
Arbuda Plastochem Pvt. Ltd
Neelikon Food Dyes Chemicals Ltd
Orjet Intermediates Pvt. Ltd.
Standardcon Pvt. Ltd
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