Indigo carmine

SIAL/131164 - certified by the BSC, Dye content 85 %

Synonym: Acid Blue 74; Indigo-5,5′-disulfonic acid disodium salt; Indigocarmine

CAS Number: 860-22-0
Empirical Formula (Hill Notation): C₁₆H₈N₂Na₂O₈S₂
Molecular Weight: 466.35
EC Number: 212-728-8
MDL Number: MFCD00005723
Linear Formula: C₁₆H₈N₂Na₂O₈S₂
Product Type: Chemical

Catalog Number	PKG Qty.	Price


45-131164-25G	25 g	$61.30 1/EA	Add To Favorites
45-131164-100G	100 g	$196.00 1/EA	Add To Favorites

This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: 131164-100G

Properties
Descriptions
Safety Info.
Basic Data

ε_max	20,000 at 250-256 nm in water at 0.01 g/L
	29500 at 284-290 nm in water at 0.01 g/L
λ_max	608 nm
agency	certified by the BSC
application(s)	diagnostic assay manufacturing hematology histology
assay	>85.0% (HPLC)
color	dark blue to very dark blue
composition	Dye content, 85%
density	0.71 g/cm³ at 29 °C
form	solid
InChI	1S/C16H10N2O8S2.2Na/c19-15-9-5-7(27(21,22)23)1-3-11(9)17-13(15)14-16(20)10-6-8(28(24,25)26)2-4-12(10)18-14;;/h1-6,17-18H,(H,21,22,23)(H,24,25,26);;/q;2*+1/p-2/b14-13+;;
InChI key	KHLVKKOJDHCJMG-QDBORUFSSA-L
mp	≥340 °C
pH	3.87 (30 °C, 7.14 g/L)
Quality Level	200
SMILES string	[Na+].[Na+].[O-]S(=O)(=O)c1ccc2NC(C(=O)c2c1)=C3Nc4ccc(cc4C3=O)S([O-])(=O)=O
storage temp.	room temp

Application:	Indigo carmine has been used to investigate its effects on ozone production by neutrophils.
Application:	Used as a collagen stain and in procedures using red nuclear stains.
Biochem/physiol Actions:	Indigo Carmine (IC), commonly known as acid blue 74 or food blue 1 or FD and C blue 2 is a blue synthetic dye. It is used as a redox indicator in analytical chemistry and as a microscopic stain in biology. IC is also employed as a photometric detector. IC is a highly toxic indigoid dye and is associated with various health hazards such as irritation to the gastrointestinal tract leading to nausea, vomiting, and diarrhea and irritation in the respiratory tract leading to coughing and shortness of breath. IC exposure might also cause skin and eye irritations to humans. IC dye spray is used for the diagnosis of dysplasia in ulcerative colitis and is considered to be a simple, feasible, and safe method.
Packaging:	25, 100 g in glass bottle

Symbol	GHS07
Signal word	Warning
Hazard statements	H317
Precautionary statements	P261 - P272 - P280 - P302 + P352 - P333 + P313 - P362 + P364
Hazard Codes	Xn
Risk Statements	22
Safety Statements	22-24/25
RIDADR	NONH for all modes of transport
WGK Germany	WGK 1

Purity	>85.0% (HPLC)
mp	≥340 °C
Density	0.71 g/cm³ at 29 °C
Storage Temp.	room temp
Colour Index Number	73015
UNSPSC	12171500

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