Dye Content (by Spectrophotometry) = >95%
Transition Range = pH 6.5-8.8 ,Yellow-Purple
Solubility 0.1% (95% EtOH) = Clear solution
Absorption maximum (pH 6.5) ?1max = 432-436nm
Absorption maximum (pH 8.8) ?2max = 571-574nm
Absorptivity (A1%/1cm at pH 6.5 at ?1max) = 490-540
Absorptivity (A1%/1cm at pH 8.8 at ?2max) = 1000-1100
Loss On Drying (110�°C) = <3%
Product Description:
Cresol red (full name: o-cresolsulfonephthalein) is a dye C21H18O5S of the sulfone phthalein series derived from ortho-cresol that is obtained as a reddish brown crystalline powder and is used as an acid-base indicator. It is a triarylmethane dye frequently used for monitoring the pH in aquaria.
Product : Azure B
C.A.S. No. : 531-55-5
CI NO. : 52010
M.F. : C15H16CIN3S
M.W. : 305.83gm/mole
Specifications:
Dye Content (by Spectrophotometry) 80%
Solubility 0.1% (Dist. Water) Clear solution
Absorption Maximum (Dist. Water) ?max 645-650nm
Absorptivity (A1%/1cm,in water at ?max on dried substance) >1600
Loss On Drying (110C) <5%
Suitability for microscopy Passes test.
Product Description:
Azure B is a cationic dye. It is part of the Romanowsky stain, which is used for the staining of blood films. It is also used for the localization of nucleic acids. Azure B has been used for the staining of chromosomes. Azure B has been used in M'Fadyean stain to visualize Bacillus anthracis capsule.
Product : Bromocrersol Green
C.A.S. No. : 76-60-8
M.F. C : 21H14Br4O5S
M.W. : 698.04gm/mole
Specifications:
Dye Content (by Spectrophotometry) >95%
Transition Range pH 3.8-5.4
Greenish Yellow-Blue
Solubility 0.1% (95% EtOH) Clear solution
Absorption maximum (pH 3.8) 1max 438-443nm
Absorption maximum (pH 5.4) 2max 615-618nm
Absorptivity (A1%/1cm at pH 3.8 at ?1max) 240-270
Absorptivity (A1%/1cm at pH 5.4 at 2max) 530-570
Loss On Drying (110�°C) <3%
Product Description
Bromocresol Green is a dye of the triphenylmethane family (triarylmethane dyes). It binds quantitatively with human albumin forming an intense blue-green complex with an absorbance maximum at 628 nm.
Format Powder
pH 3.8 - 5.4, yellow to blue.
Dye Content (by Spectrophotometry) >95%
Transition Range pH 5.2-6.8
Yellow-Purple
Solubility 0.1% (95% EtOH) Clear solution
Absorption maximum (pH 5.2) ?1max 427-431nm
Absorption maximum (pH 6.8) ?2max 588-590nm
Absorptivity (A1%/1cm at pH 5.2 at ?1max) 400-500
Absorptivity (A1%/1cm at pH 6.8 at ?2max) 1000-1100
Loss On Drying (110�°C) <1%
Product Description:
Bromocresol Purple is a water-soluble dye used as a protein probe. It has been used in the spectrophotometric determination of serum-albumin. It is also a pH indicator with a transition interval from 5.2 - 6.8 (yellow to purple).
Specifications:
Solubility 0.1% (0.1N NaOH) = Clear solution
Absorption maximum (0.1N NaOH) at ?max = 572-578nm
Absorptivity (A1%1cm in 0.1N NaOH, at ?max on dried substance) = >790
Loss On Drying (110�°C) = <6%
Product Description:
o-Cresolphthalein Complexone is complexometric reagent derived from o-Cresolphthalein. It shows violet-red color in alkaline media and is a principle compound for the determination of hardness of water.Also used as Calcium Assay Kit as direct colorimetric assay based on the O-Cresolphtalein (OCPC) method without deproteinization of the sample. The calcium determination is based on the reaction of calcium with O-Cresolphthalein complexone in alkaline solution, which yields a violet colored complex. The intensity of the color formed is proportional to the calcium concentration in the sample. Absorbance of the Ca2+-O-Cresolphtalein complex is measured at 570nm. Wavelength range of sensitivity: 560 ~ 590nm.
Product: 2:6 Dichlorophenol Indophenol Sodium Salt
C.A.S. No.: 620-45-1
M.F. : C12H5Cl2NNaO22H2O
M.W.: 326.11gm/mole
Specifications:
Solubility 0.1% ((50% EtOH +2ml Na2CO3) = Clear solution
Absorption maximum (50% EtOH +2ml Na2CO3) ?max= 640-645nm
Absorptivity (A1%/1cm, in 50% EtOH +2ml Na2CO3), at ?max = >700
Interfering dyes test (according to ACS) = Passes test
Loss On Drying (110�°C) = <12%
Product Description:
2,6-dichlorophenolindophenol ( DCPIP ) is a blue chemical compound used as a redox dye. In Oxidized form DCPIP is blue;whereas in reduced form DCPIP is colorless.The rate of photosynthesis can be measured by the rate at which this dye changes color (is reduced) when exposed to light in a photosynthetic system. This reaction is reversible, as colorless DCPIP can be reoxidized to blue. Blue redox indicator dye used for the determination of Vitamin C (ascorbic acid), which when Vitamin C is present reduces to a colorless hydroxy compound. May be used as an electron acceptor and to stain glutathione reductase electrophoresis gels. Also known as Tillman's reagent.
Product: Eosin Blue
C.A.S. No.: 548-24-3
CI NO.: 45400
M.F.: C20H6Br2N2Na2O9
M.W.: 624.09gm/mole
Specifications:
Dye content (By Gravimetry) = >85%
Solubility 0.1 % (Dist. Water) = Clear solution
Absorption maximum (Dist. water) ?max = 516-520nm
Absorptivity (A1%1cm in water at ?max) = >800
Loss On Drying (110�°C) = <8%
Product Description:
Eosin B sodium salt is a cell and tissue stain. Eosin B sodium salt is used as a counter stain for collagen, as a tissue stain for cell granules, nuclei, and microorganisms when coupled with Azure A (sc-203729), and as a stain for cell differentiation of the anterior pituitary.
