EOSIN BLUE

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Product Short Description: EOSIN BLUE
Product Technical Specification:
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%
Remarks:
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EOSIN YELLOW

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Product Short Description: EOSIN YELLOW
Product Technical Specification:
C.A.S. No. 17372-87-1
CI NO. 45380
M.F. C20H6Br4Na2O5
M.W. 691.86gm/mole

Specifications:

Appreance RED/ORANGE POWDER 
Dye Content (Spectrophotometry) >90%
Solubility 0.1 % (Dist. Water) Clear solution
Absorption Maximum (Dist. water) ?max 515-518nm
Absorptivity (A1%,1cm in water at ?max) >1260
Loss On Drying (110°C) <8%
Suitability for microscopy Passes test
Remarks:
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ETHYL ORANGE

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Product Short Description: ETHYL ORANGE
Product Technical Specification:
C.A.S. No. 62758-12-7
M.F. C16H18N3SO3Na
M.W. 355.39gm/mole

Specifications:

Solubility 0.1 % (Dist. Water) Clear solution
Transition Range pH 3.0-4.8
  Red-Orange Yellow
Absorption maximum (Dist. Water) ?max 472-477nm
Absorptivity (A1% 1cm in Dist. water, at ?max) >850
Loss On Drying (110°C) <5%
Remarks:
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EVAN'S BLUE

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Product Short Description: EVAN'S BLUE
Product Technical Specification:
C.A.S. No. 314-13-6
CI NO. 23680
M.F. C34H24N6Na4O14S4
M.W. 960.82gm/mole

Specifications:

Dye Content (by Spectrophotometry) >85%
Solubility 0.1 % (Dist. Water) Clear solution
Absorption maximum (Dist. water) ?max 605-611nm
Absorptivity (A1% 1cm in water, at ?max, on dried substance) >800
Loss On Drying (110°C) <10%
Suitability for microscopy Passes test
Remarks:
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GIEMSA STAIN

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Product Short Description: GIEMSA STAIN APPLICATION: MICROSCOPICAL STAINING
Product Technical Specification:
C.A.S. No. 51811-82-6

Specifications:

Appearance Greenish Powder
Solubility 0.1 % (MeOH) Clear Blue Solution with Fluorescence
Absorption Maximum(in MeOH) ?1max 640-650 nm
Absorption Maximum(in MeOH) ?2max 520 - 525 nm
Absorptivity (A1%1cm in MeOH at ?1max on dried substance) 950-1150
Absorptivity (A1%1cm in MeOH at ?2max on dried substance) 600-750
Loss On Drying (110°C) <10%
Suitability for microscopy Passes test
Remarks:
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HYDROXY NAPHTHOL BLUE ACS GRADE

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Product Short Description: HYDROXY NAPHTHOL BLUE (ACS GRADE)
Product Technical Specification:
C.A.S. No. 165660-27-5
M.F. C20H12N2O11Na2S3
M.W. 598.50gm/mole

Specifications:

Solubility 0.1 % (Dist. Water) Clear solution
Suitability for Calcium determination Passes test
Absorption maximum (Ammonia buffer pH 12.0+2ml 0.05M E.D.T.A.) ?max 645-650nm
Absorptivity (A1% 1cm at ?max, in Ammonia buffer pH 12.0+2ml 0.05M E.D.T.A.) >350
Loss On Drying (110°C) <5%
Remarks:
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ORCEIN

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Product Short Description: ORCEIN, 1400-62-0, Biological Stains and Dyes
Product Technical Specification:
C.A.S. No. 1400-62-0

Specifications:

Solubility 0.1 %(0.1N NaOH) Clear solution
Absorption Maximum (0.1N NaOH) ?max 574-580nm
Absorptivity (A1%/1cm in 0.1N NaOH, at ?max) 250-450
Loss on drying (110°C) <7%
Remarks:
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PHENOL RED ACS GRADE

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Product Short Description: PHENOL RED (ACS GRADE)
Product Technical Specification:

 

C.A.S. No. 143-74-8
M.F. C19H14O5S
M.W. 354.38gm/mole

Specifications:

 

Colour Red / Orange Powder
Dye Content (by Spectrophotometry) >95%
Solubility 0.1 % (95% EtOH) Clear solution
Transition range pH 6.5-8.2
  Yellow-Reddish violet
Absorption Maximum (pH 6.5) ?1max 430-435nm
Absorption maximum (pH 8.2) ?2max 557-560nm
Absorptivity (A1%/1cm at pH 6.5 at ?1max) 600-700
Absorptivity (A1%/1cm at pH 8.2 at ?2max) 1100-1200
Loss on drying (110°C) <1%
Remarks:
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PHENOL RED SODIUM SALT ACS GRADE

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Product Short Description: PHENOL RED SODIUM SALT (ACS GRADE)
Product Technical Specification:
C.A.S. No. 34487-61-1
M.F. C19H13O5SNa
M.W. 376.36gm/mole

Specifications:

Dye Content (by Spectrophotometry) >90%
Solubility 0.1 % (Dist. water) Clear solution
Transition range pH 6.5-8.2
  Yellow-Reddish violet
Absorption Maximum (pH 6.5) ?1max 430-435nm
Absorption maximum (pH 8.2) ?2max 557-560nm
Absorptivity (A1%/1cm at pH 6.5 at ?1max) 560-620
Absorptivity (A1%/1cm at pH 8.2 at ?2max) 970-1100
Loss on drying (110°C) <5%
Remarks:
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PONCEAU S

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Product Short Description: PONCEAU S
Product Technical Specification:
C.A.S. No. 62276-79-5
CI NO. 27195
M.F. C22H12N4Na4O13S4
M.W. 760.58gm/mole

Specifications:

Dye Content (by Spectrophotometry) >75%
Solubility 0.1% (Dist. water) Clear solution
Absorption max. (Dist. water) ?max 517-523nm
Absorptivity (A1%/1cm in Dist. water, at ?max) 460-600
Loss on drying (110°C) >10%
Suitability for microscopy Passes test
Remarks:
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PYROGALLOL RED

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Product Short Description: PYROGALLOL RED
Product Technical Specification:
C.A.S. No. 32638-88-3
M.F. C19H14O9S
M.W. 418.39gm/mole

Specifications:

Solubility 0.1% (0.1N NaOH) Clear solution
Absorption maximum (in acidic MeOH) ?max 474-478nm
Absorptivity 1%, 1cm (in acidic MeOH) at ?max >450
Loss on drying (110°C) <5%
Remarks:
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PYROCATECHOL VIOLET

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Product Short Description: PYROCATECHOL VIOLET
Product Technical Specification:
C.A.S. No. 115-41-3
M.F. C19H14O2S
M.W. 386.38gm/mole

Specifications:

Solubility 0.1% (MeOH) Clear solution
Absorption maximum(in MeOH) ?max 442-446nm
Absorptivity 1%, 1cm (in MeOH)at ?max >360
Loss on drying (110°C) <7%
Remarks:
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