NILE BLUE CHLORIDE

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Product Short Description: NILE BLUE CHLORIDE
Product Technical Specification:
C.A.S. No. 2381-85-3
CI NO. 51180
M.F. C20H20ClN3O
M.W. 353.85gm/mole

Specifications:

Dye Content (by Spectrophotometry) >90%
Solubility 0.1% (50% EtOH) Clear solution
Absorption maximum (50% EtOH) ?max 635-639nm
Absorptivity (A1%/1cm in 50% EtOH, at ?max) >1800
Loss On Drying (110°C) <8%
Remarks:
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NILE BLUE SULPHATE

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Product Short Description: NILE BLUE SULPHATE
Product Technical Specification:
C.A.S. No. 3625-57-8
CI NO. 51180
M.F. C40H40N6O6S
M.W. 732.84gm/mole

Specifications:

Dye Content (by Spectrophotometry) >90%
Solubility 0.1% (50% EtOH) Clear solution
Absorption maximum (50% EtOH) ?max 633-639nm
Absorptivity (A1%/1cm in 50% EtOH, at ?max) >1630
Loss On Drying (110°C) <8%
Remarks:
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NILE RED

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Product Short Description: NILE RED
Product Technical Specification:
C.A.S. No. 7385-67-3
M.F. C20H18N2O2
M.W. 318.38gm/mole

Specifications:

Solubility 0.1% (MeOH) Clear solution
Absorption maximum (MeOH) ?max 551-554nm
Absorptivity (A1%/1cm in MeOH, at ?max) >1400
Loss On Drying (110°C) <1%
Remarks:
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NITROSO-R-SALT

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Product Short Description: NITROSO-R-SALT
Product Technical Specification:
C.A.S. No. 525-05-3
M.F. C10H5O8NNa2S2 . xH2O
M.W. 377.26gm/mole

Specifications:

Solubility 0.1% (Dist. Water) Clear solution
Absorption maximum (0.1N NaOH) ?max 422-426nm
Absorptivity (A1%/1cm in 0.1N NaOH, at ?max) >200
Residue on ignition (as sulfate) 37%
Loss on drying (105°C) <1%
Remarks:
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ORANGE G

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Product Short Description: ORANGE G
Product Technical Specification:
C.A.S. No. 1936-15-8
CI NO. 16230
M.F. C16H10N2Na2O7S2
M.W. 452.38gm/mole

Specifications:

Dye Content (by Spectrophotometry) >90%
Solubility 0.1 %(Dist. water) Clear solution
Absorption Maximum (Dist. water) ?max 476-481nm
Absorptivity (A1%/1cm in water, at ?max) 400-500
Loss on drying (110°C) <10%
Suitability for microscopy Passes test
Remarks:
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PAR INDICATOR MONOSODIUM SALT

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Product Short Description: PAR INDICATOR MONOSODIUM SALT
Product Technical Specification:
C.A.S. No. 16593-81-0
M.W. 255.21gm/mole

Specifications:

Dye Content (by Spectrophotometry) >90%
Solubility 0.1 % (Dist. water) Clear solution
Absorption Maximum (in Dist. water) ?max 411-413nm
Absorptivity (A1%/1cm in Dist. water ,at ?max) >1300
Loss on drying (110°C) <8%
Suitability as metal indicator Passes test
Remarks:
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PARAROSANILINE HYDROCHLORIDE

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Product Short Description: PARAROSANILINE HYDROCHLORIDE
Product Technical Specification:
C.A.S. No. 569-61-9
CI NO. 42500
M.F. C19H18ClN3
M.W. 323.83gm/mole

Specifications:

Appearance   Green Crystalline Powder with Luster 
Dye Content (by Spectrophotometry) >88%
Water Content   0.5% Max
Water Insoluble Matter  0.2% Max 
Solubility 0.1 % (50% EtOH) Clear solution
Absorption Maximum (50% EtOH) ?max 545-548nm
Absorptivity (A1%/1cm in 50% EtOH, at ?max) >2550
Loss on drying (110°C) <10%
Suitability for microscopy Passes test
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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