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CONGO RED

Congo red excellent quality manufacturer, exporter and supplier. Congo red is an organic compound, the sodium salt of 3,3′-([1,1′-biphenyl]-4,4′-diyl)bis(4-aminonaphthalene-1-sulfonic [+] Read More...
Article News:
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Packing Size:
0.00 Box
Code:
RXSOL-69-5735-800
CONGO RED
Application:
Congo red was formerly used to dye cotton but has been superseded by dyes more resistant to light and to washing. It is still used in histology to stain tissues for microscopic examination, and to se [+] Read More...
Using Procedure:
Congo Red is an acid-base indicator and it turns red when it comes in contact with bases or alkalies and turns blue in presence of acids.Congo red is water-soluble compound and its solubility is greater in [+] Read More...
Note:
Technical Specifications:
C.A.S. No. 573-58-0
CI NO. 22120
M.F. C32H22N6Na2O6S2
M.W. 696.66gm/mole

Specifications:

Dye Content (by Spectrophotometry) >75%
Transition Range pH 3.0-5.2
  Violet-Orange Red
Solubility 0.1% (Dist. Water) Clear solution
Absorption Maximum (Dist.Water) ?max 495-499nm
Absorptivity (A1%, 1cm in Water, at ?max) >520
Loss On Drying (110°C) <5%
Suitability for microscopy Passes test

Mol. weight: 696.665 g/mol

Odor: Odorless.

Color: Red. Brownish-red. (Dark.)

pH (1% soln/water): 8.5 - 9.0 [Basic.]

Melting Point: >360°C (680°F) 

Solubility: Soluble in cold water. Very slightly soluble in acetone. Insoluble in diethyl ether. Soluble in Ethanol. Solubility in water: 1g/30 ml water

We introduce ourselves as one of  the leading exporters of , pH Indicators, Chemicals reagents & Catalysts.
We give you brief details of our products as under - 

Product Name   CAS No Product Name   Cas No
ACID FUCHSIN   3244-88-0 JANUS GREEN B   2869-83-2
ALIZARIN RED S   130-22-3 LEISHMAN'S STAIN   12627-53-1
ALIZARIN COMPLEXONE    

MALACHITE GREEN

  13425-25-7
ALKALI BLUE 6B   1324-80-7 METHYL ORANGE   547-58-0
METHYL BLUE ACID BLUE  93   28983-56-4 META CRESOL PURPLE    
AURIN  (Rosolic Acid)   603-45-2 MAGNESON I    -- --
AZURE 1 (B)   531-55-5 May & Grunwald Stain   62851-42-7
AZURE A   531-53-3 METHYLENE BLUE   7220-79-3
AZUR II   37247-10-2 METHYL RED   493-52-7
BIEBRICH SCARLET   4196-99-0 METHYL GREEN   7114-03-6
BASIC FUCHSIN   632-99-5 NEW FUCHSIN   3248-91-7
BROMOPHENOL BLUE   115-39-9 NILE BLUE (SULFATE)   3625-57-8
BROMOCRESOL GREEN    76-60-8 NITROSO R-SALT   525-05-3
BROMOCRESOL PURPLE   115-40-2 NEUTRAL RED   553-24-2
BROMOCRESOL PURPLE SODIUM SALT   62625-28-9 ORANGE G   1936-15-8
BROMOTHYMOL BLUE   76-59-5 O-CRESOLPHTHALEIN    59-27-0
BROMOTHYMOL BLUE SODIUM SALT   34722-95-93 PHENOL RED   143-74-8
CRESOL RED   1733-12-6 PHENOL RED SODIUM SALT   34487-61-1
CHLOROPHENOL RED   4430-20-0 PHLOXINE B   18472-87-2
CHROME AZUROL S   1667-99-8 PAN INDICATOR   85-85-8
CRYSTAL VIOLET   548-62-9 PAR (Mono Sodium)   16593-81-0
O-CRESOLPHTHALEIN   59-27-0 PONCEAU S   6226-79-5
CALCON   2538-85-4 P-ROSANILINE HCL    569-61-9
CALCON CARBOXYLIC ACID   3737-95-9 PHENOLPHTHALEIN    
CALMAGITE   3147-14-6 ROSE BENGAL   632-69-9
CONGO RED   573-58-0 SAFRANIN   477-73-6
CHROMOTROPE 2 R   4197-07-3 SUDAN III   85-86-9

DI ETHYL SAFRANINE

  4569-86-2 THYMOLPHTHALEIN   125-20-2

DI METHYL SAFRANINE

  2390-56-9 THIOFLAVIN T   2390-54-7

2,6 DICHLOROINDOPHENOL SODIUMSALT

  620-45-1 THYMOL BLUE   76-61-9
EOSIN YELLOW   17372-87-1 TITAN YELLOW   1829- 00-1
ERIOCHROME BLACK T   1787-61-7 TOLUIDINE BLUE   92-31-9
Ethyl Orange Sodium Salt    62758-12-7 TRYPAN BLUE   72-57-1
EVAN'S BLUE   314-13-6 WRIGHT'S STAIN   68988-92-1
FIELD STAIN A     XYLENOL ORANGE   3618-43-7
FIELD STAIN B     ACRIFLAVINE HCL   8063-24-9
FLUORESCEIN   2321-07-5 ACID BLUE 93   28983-56-4
FLUORESCEIN SODIUM   518-47-8 P-ROSANILINE BASE   467-62-9
FLUORESCEIN COMPLEXONE   1461-15-0 P-ROSANILINE ACETATE   6035-94-5
GIEMSA'S STAIN   51811-82-6 ZINCON   62625-22-3
HYDROXY NAPHTHOL BLUE   63451-35-4 1- NAPHTHOLBENZEIN   145-50-6
HEMATOXYLIN STAIN   517-28-2 ESOIN B   548-24-3

NEW INDICATORS

ALIZARIN YELLOW GG    584-42-9 NITRAZINE YELLOW   1716-22-9
ALCIAN BLUE 8GX   -- NAPHTHOL GREEN  B   19381-50-1
O-Cresolphthalein Complexone    2411-89-4 ORCEIN   1400-62-0
LITMUS GRANULES    1393-92-6 PYROCATECHOL VIOLET   115-41-3
BROMOXYLENOL BLUE    40070-59-5 PYROGALLOL RED    32638-88-3
BROMOPHENOL RED   2800-80-8 TETRAZOLIUM BLUE CHLORIDE    1871-22-3
BRILLIANT CRESYL BLUE   81029-05-2 SUDAN IV   85-83-6

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Answer: As per our working policy,  you are eligible for maximum 2% as a trade discount. Companies may oblige correction of discount, subject to approval. 
 
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CONGO RED
CONGO RED

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