TOLUIDINE BLUE O

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Product Short Description: TOLUIDINE BLUE O
Product Technical Specification:
C.A.S. No. 92-31-9
CI NO. 52040
M.F. C15H16N3SCl
M.W. 305.83gm/mole

Specifications:

Dye Content (by Spectrophotometry) >80%
Solubility 0.1% (Dist. water) Clear solution
Absorption maximum (Dist. water) ?max 628-633nm
Absorptivity (A1%/1cm in water, at ?max) >1200
Loss on drying (110°C) <8%
Suitability for microscopy Passes test
Remarks:
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TITAN YELLOW 65%

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Product Short Description: TITAN YELLOW 65%
Product Technical Specification:
C.A.S. No. 1829-00-1
CI NO. 19540
M.F. C28H19Na2O6S4N5
M.W. 695.73gm/mole

Specifications:

APPEARANCE YELLOW CRYSTALLINE POWDER
Dye Content (by Spectrophotometry) >65%
Solubility 0.1% (Dist. water) Clear solution
Transition range pH 12.0-13.0
  Yellow-Red
Absorption maximum (Dist. water) ?max 398-405nm
Absorptivity (A1%/1cm in water, at ?max on dried substance) >525
Loss on drying (110°C) <8%
Remarks:
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THYMOLPHTHALEIN ACS GRADE

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Product Short Description: THYMOLPHTHALEIN ACS GRADE chemicals name is 3,3-Bis(4-hydroxy-5-isopropyl-2-methylphenyl)-2-benzofuran-1(3H)-one
Product Technical Specification:
C.A.S. No. 125-20-2
M.F. C28H30O4
M.W. 430.54gm/mole

Specifications:

Transition range pH 9.3-10.5
  Colorless-Blue
Solubility 0.1 % (95% EtOH) Clear solution
Absorption maximum (0.1N NaOH) ?max 592-596nm
Absorptivity (A1%/1cm at 0.1NNaOH, at ?max) >1000
Loss on drying (110°C) <1%
Remarks:

InChI Key : LDKDGDIWEUUXSH-UHFFFAOYSA-N

Thymolphthalein acts as pH indicator, as reagent for blood after decolorizing the alkaline solution by boiling with zinc dust. . Also used to model communicable disease transmission and the importance of lab cleanliness.Thymolphthalein was suitable as indicator during titration of hyamine hydroxide. It is suitable in preparing disappearing ink.

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THYMOL BLUE SODIUM SALT ACS GRADE

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Product Short Description: THYMOL BLUE SODIUM SALT (ACS GRADE)
Product Technical Specification:
C.A.S. No. 62625-21-2
M.F. C27H29SO5Na
M.W. 488.58gm/mole

Specifications:

Dye Content (by Spectrophotometry) >90%
Solubility 0.1 % (Dist. water) Clear solution
Transition range pH7.8-9.5
  Yellow-Blue
Absorption Maximum (pH 7.8) ?1max 431-437nm
Absorption maximum (pH 9.5) ?2max 594-598nm
Absorptivity (A1%/1cm at pH 7.8 at ?1max) 190-285
Absorptivity (A1%/1cm at pH 9.5 at ?2max) 425-525
Loss on drying (110°C) <5%
Remarks:
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THYMOL BLUE ACS GRADE

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Product Short Description: THYMOL BLUE (ACS GRADE)
Product Technical Specification:

 

C.A.S. No. 76-61-9
M.F. C27H30O5S
M.W. 466.60gm/mole

Specifications:

Dye Content (by Spectrophotometry) >95%
Solubility 0.1 % (95% EtOH) Clear solution
Transition range pH7.8-9.5
  Yellow-Blue
Absorption Maximum (pH 7.8) ?1max 431-436nm
Absorption maximum (pH 9.5) ?2max 594-598nm
Absorptivity (A1%/1cm at pH 7.8 at ?1max) 200-300
Absorptivity (A1%/1cm at pH 9.5 at ?2max) 450-550
Loss on drying (110°C) <3%
Remarks:
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SUDAN IV

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Product Short Description: SUDAN IV
Product Technical Specification:
C.A.S. No. 85-83-6
CI NO. 26105
M.F. C24H20N4O
M.W. 380.45gm/mole

Specifications:

Appearance Brown Powder
Solubility 0.1 % (Toluene) Clear solution
Absorption maximum (Toluene) ?max 520-523nm
Absorptivity (A1%/1cm in Toluene, at ?max) >710
Suitabillity for Microscopy To Pass Test
Loss on drying (110°C) <1%
Remarks:
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SUDAN III

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Product Short Description: SUDAN III
Product Technical Specification:
C.A.S. No. 85-86-9
CI NO. 26100
M.F. C22H16N4O
M.W. 352.40gm/mole

Specifications:

Dye Content (by Spectrophotometry) >85%
Solubility 0.1 % (Toluene) Clear solution
Absorption maximum (Toluene) ?max 508-512nm
Absorptivity (A1%/1cm in Toluene, at ?max) >870
Loss on drying (110°C) <1%
Suitabilty for Microscopy To Pass Test
Remarks:
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SPADNS

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Product Short Description: SPADNS
Product Technical Specification:
C.A.S. No. 23647-14-5
M.F. C16H9N2Na3O11S3
M.W. 570.42gm/mole

Specifications:

Dye Content (by Spectrophotometry) >80%
Solubility 0.1% (Dist. water) Clear solution
Absorption Maximum (water, at pH 7.0)?max 505-510nm
Absorptivity (A1%/1cm in Dist. water, at pH 7.0 at ?max) >375
Loss on drying (110°C) <10%
Remarks:
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SODIUM DIPHENYLAMINE SULFONATE ACS GRADE

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Product Short Description: SODIUM DIPHENYLAMINE SULFONATE (ACS GRADE)
Product Technical Specification:
C.A.S. No. 6152-67-6
M.F. C12H10NNaO3S
M.W. 271.27gm/mole

Specifications:

Solubility 0.1% (Dist. water) Clear solution
Sulfated ash 26.5-28.5%
Absorption maximum (Dist. water) ?max 290-295nm
Absorptivity (A1%/1cm in Dist. water) at ?max on dried substance 700-800
Sensitivity as indicator Passes test
Loss on drying (110°C) <5%
Remarks:
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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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