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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Litmus Granules / Powder

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Product Short Description: Litmus Granules / Powder
Product Technical Specification:
SPECIFICATIONS :
APPEARANCE : BLUE GRANULES
SENSITIVITY TEST : TO PASS TEST
SENSITIVITY TEST : TO PASS TEST SPECIFICATIONS :
APPEARANCE : BLUE GRANULES
SENSITIVITY TEST : TO PASS TEST 
Remarks:
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TRYPAN BLUE

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Product Short Description: TRYPAN BLUE
Product Technical Specification:
C.A.S. No. 72-57-1
CI NO. 23850
M.F. C34H24N6S4O14Na4
M.W. 960.82gm/mole

Specifications:

Dye Content (by Spectrophotometry) >60%
Solubility 0.1% (Dist. water) Clear solution
Absorption maximum (MeOH) ?max 603-607nm
Absorptivity (A1%/1cm in MeOH, at ? max) >625
Suitability for Microscopy Passes Test
Loss on drying (110°C) <10%
Remarks:
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ROSE BENGAL

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Product Short Description: ROSE BENGAL
Product Technical Specification:
C.A.S. No. 632-69-9
CI NO. 45440
M.F. C20H2O5Cl4I4Na2
M.W. 1017.65gm/mole

Specifications:

Dye Content (by Spectrophotometry) >90%
Solubility 0.1% (Dist. water) Clear solution
Absorption max. (Water+2ml 5% Na2CO3) ?max 544-550nm
Absorptivity (A1%/1cm, in Water+2ml 5% Na2CO3) at ?max >910
Loss on drying (110°C) <10%
Remarks:
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