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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ANILINE BLUE-METHYL BLUE

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Product Short Description: ANILINE BLUE (METHYL BLUE)
Product Technical Specification:
C.A.S. No. 28983-56-4
M.F. C37H27N3Na2O9S3
M.W. 799.80gm/mole

Specifications:

Solubility 0.1% (Dist. Water) Clear solution
Dye Content (by Spectrophotometry) >50%
Absorption Maximum (0.005M HCl) ?max 595-605nm
Absorptivity (A1%/1cm in 0.005M HCL, at ?max) >550
TLC-TEST PASSES TEST 
IDENTITY PASSES TEST
SUITABILITY FOR MICROSCOPY  PASSES TEST
SUITABILITY FOR MICROBIOLOGY PASSES TEST
Loss On Drying (110°C) <7%
Remarks:
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