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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JENNER STAIN

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Product Short Description: JENNER STAIN
Product Technical Specification:
C.A.S. No. 62851-42-7

Specifications:

Solubility 0.1 % (MeOH) Clear solution
Absorption Maximum(in MeOH) ?1max 650-653nm
Absorption Maximum(in MeOH) ?2max 520-525nm
Absorptivity (A1%1cm in MeOH at ?1max on dried substance) >1100
Absorptivity (A1%1cm in MeOH at ?2max on dried substance) >600
Loss On Drying (110°C) <10%
Remarks:
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LEISHMAN STAIN

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Product Short Description: LEISHMAN STAIN
Product Technical Specification:
C.A.S. No. 12627-53-1

Specifications:

APPEARANCE  BLACKISH BLUE POWDER
Solubility 0.1 % (MeOH) CLEAR BLUE SOLUTION WITH GREEN FLUORESCENCE
Absorption Maximum(in MeOH) ?1max 640-645nm
Absorption Maximum(in MeOH) ?2max 522-525nm
Absorptivity (A1%1cm in MeOH at ?1max on dried substance) >900
Absorptivity (A1%1cm in MeOH at ?2max on dried substance) >650
Loss On Drying (110°C) <8%
Suitability for microscopy Passes test
Remarks:
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MAY-GRUNWALD STAIN

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Product Short Description: MAY-GRUNWALD STAIN
Product Technical Specification:

 

C.A.S. No. 62851-42-7

Specifications:

APPEARANCE  BLACKISH GREEN POWDER
Solubility 0.1 % (MeOH) CLEAR BLUE SOLUTION WITH GREEN FLUORESCENCE 
Absorption Maximum(in MeOH) ?1max 650-653nm
Absorption Maximum(in MeOH) ?2max 520-525nm
Absorptivity (A1%1cm in MeOH at ?1max on dried substance) >1100
Absorptivity (A1%1cm in MeOH at ?2max on dried substance) >600
Loss On Drying (110°C) <10%
Suitability for microscopy Passes test
Remarks:
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METHYL ORANGE ACS GRADE

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Product Short Description: METHYL ORANGE (ACS GRADE)
Product Technical Specification:
C.A.S. No. 547-58-0
CI NO. 13025
M.F. C14H14N3SO3Na
M.W. 327.34gm/mole

Specifications:

Dye Content (by Spectrophotometry) >95%
Solubility 0.1 % (Dist. water) Clear solution
Transition Range pH 3.1-4.4
  Pink Orange-Yellow
Absorption maximum (pH 3.1) ?1max 501-504nm
Absorption maximum (pH 4.4) ?2max 467-471nm
Absorptivity (A1%/1cm at pH 3.1 at ?1max) 1050-1150
Absorptivity (A1%/1cm at pH 4.4 at ?2max) 750-850
Loss On Drying (110°C) <3%
Remarks:
Colour change 
The color change of a pH indicator is caused by the dissociation of the H+ ion from the indicator itself. Recall that pH indicators are not only natural dyes but also weak acids. The dissociation of the weak acid indicator causes the solution to change color.
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METHYL RED ACS GRADE

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Product Short Description: METHYL RED (ACS GRADE)
Product Technical Specification:
C.A.S. No. 493-52-7
CI NO. 13020
M.F. C15H15N3O2
M.W. 269.31gm/mole

Specifications:

Dye Content (by Spectrophotometry) >95%
Transition Range pH 4.2-6.2
  Pink-Yellow
Solubility 0.1% (95% EtOH) Clear solution
Absorption maximum (pH 4.2) ?1max 523-526nm
Absorption maximum (pH 6.2) ?2max 430-434nm
Absorptivity (A1%/1cm at pH 4.2 at ?1max) 1300-1400
Absorptivity (A1%/1cm at pH 6.2 at ?2max) 700-800
Loss On Drying (110°C) <3%
Remarks:
Physical State Solid
Appearance dark red to purple
Odor none reported
pH Not available
Vapor Pressure Negliglble
Vapor Density Not available
Evaporation Rate Negligible
Viscosity Not available
Boiling Point Not available
Freezing/Melting Point 179-182 deg C
Decomposition Temperature Not available
Solubility Insoluble in water
Specific Gravity/Density Not available
Molecular Formula C15H15N3O2
Molecular Weight 269.30
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METHYL RED HYDROCHLORIDE

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Product Short Description: METHYL RED HYDROCHLORIDE
Product Technical Specification:
C.A.S. No. 63451-28-5
CI NO. 13020
M.F. C15H16N3O2Cl
M.W. 305.77gm/mole

Specifications:

Dye Content (by Spectrophotometry) >90%
Solubility 0.1%(95% EtOH) Clear solution
Transition Range pH 4.2-6.2
  Pink-Yellow
Absorption maximum (EtOH) ?max 490-496nm
Absorptivity (A1%/1cm in Ethanol) at ?max >550
Loss On Drying (110°C) <3%
Remarks:
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METHYL RED SODIUM SALT ACS GRADE

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Product Short Description: METHYL RED SODIUM SALT (ACS GRADE)
Product Technical Specification:
C.A.S. No. 845-10-3
CI NO. 13020
M.F. C15H14N3O2Na
M.W. 291.29gm/mole

Specifications:

Dye Content (by Spectrophotometry) >90%
Solubility 0.1%(Dist. water) Clear solution
Transition Range pH 4.5-6.2
  Violet red- Brownish Yellow
Absorption maximum (Dist. water) ?max 430-440nm
Absorptivity (A1%/1cm in Dist. water) at ?max >580
Loss On Drying (110°C) <5%
Remarks:
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METHYLTHYMOL BLUE COMPLEXONE

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Product Short Description: METHYLTHYMOL BLUE COMPLEXONE
Product Technical Specification:
C.A.S. No. 1945-77-3
M.F. C37H40N2Na4O13S
M.W. 844.76gm/mole

Specifications:

Solubility 0.1 % (Dist. water) Clear solution
Absorption maximum (Dist. water) ?max 437-443nm
Absorptivity maximum (A1%/1cm, in water, at ?max) >120
Loss On Drying (110°C) <10%
Suitability as indicator for Metal Titration Passes test
Remarks:
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NAPHTHOL GREEN B

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Product Short Description: NAPHTHOL GREEN B
Product Technical Specification:
C.A.S. No. 19381-50-1
CI NO. 10020
M.F. (C10H5O5NNaS)3 . Fe
M.W. 878.45gm/mole

Specifications:

 

Solubility 0.1 % (Dist. water) Clear solution
Absorption maximum (Dist. water) ?max 712-716nm
Absorptivity maximum (A1%/1cm, in water on dried substance) at ?max >110
Loss On Drying (110°C) <10%
Remarks:
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NEUTRAL RED 60%

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Product Short Description: NEUTRAL RED 60%
Product Technical Specification:
C.A.S. No. 553-24-2
CI NO. 50040
M.F. C15H17 N4Cl
M.W. 288.78gm/mole

Specifications:

Dye Content (by Spectrophotometry) >60%
Transition Range pH 6.8-8.0
  Violet Red- Yellow
Solubility 0.1% (50% EtOH) Clear solution
Absorption Maximum (50%EtOH+2ml Acetic Acid) ?max 539-544nm
Absorptivity (A1%,1cm in 50% EtOH+2ml Acetic Acid, at ?max) >920
Loss On Drying (110°C) <8%
Suitability for microscopy Passes test
Remarks:
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NEUTRAL RED 95%

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Product Short Description: NEUTRAL RED 95%
Product Technical Specification:
C.A.S. No. 553-24-2
CI NO. 50040
M.F. C15H17 N4Cl
M.W. 288.78gm/mole

Specifications:

Dye Content (by Spectrophotometry) >95%
Transition Range pH 6.8-8.0
  Violet Red- Yellow
Solubility 0.1% (50% EtOH) Clear solution
Absorption Maximum (50%EtOH+2ml Acetic Acid) ?max 539-544nm
Absorptivity (A1%,1cm in 50% EtOH+2ml Acetic Acid, at ?max) >1440
Loss On Drying (110°C) <8%
Suitability for microscopy Passes test
Remarks:
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