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 laboratory reagents manufacturer, lab reagents manufacturer, laboratory reagents exporter, lab reagents exporter
laboratory reagents manufacturer, lab reagents manufacturer, laboratory reagents exporter, lab reagents exporter
We are manufacturer and exporter of the best quality laboratory reagents to detect, measure and examine or produce other substances. We make sure that all our tests match the international standards to produce impeccable laboratory reagents.
laboratory reagents, laboratory reagent manufacturer, reagents exporter, lab reagent manufacturer, laboratory reagent exporter, lab reagent exporter
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Food Colour

Reactive Dyes

Laboratory Reagents

Pigment Powder

Acid Dyes

Direct Dyes
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Basic Fuschsin
Bromo Cresol Purple
Bromo Phenol Blue
Bromo Thymol Blue
o-Cresalphthalein
Cresol Red
Eosin Yellowish
  
Methyl Orange

Laboratory Reagents


Basic Fuschsin

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Specification Sheet

CAS NO. 632 - 99 - 5
C.I. NO. 42510
Chemical Formula C20H20ClN3
Molecular Weight 337.86
Dye Content ~88%
Absorption Max 549 - 552 nm
Absorptivity (1%, 1cm) 2350 - 2700
Loss On Drying <10%


Bromo Cresol Purple
Specification Sheet
CAS No. 115 - 40 - 2
Chemical Formula C21H16Br2O5S
Molecular Weight 540.24
Melting Point 240º c
Dye Content ~95%
Transition Range
  		pH 5.2 - 6.8
Greenish Yellow to Purple
Absorption Max (pH 5.2) 427 - 431 nm
Absorption Max (pH 6.8) 588 - 590 nm
Absorptivity (1%,1cm) pH 5.2 400 - 450
Absorptivity (1%,1cm) pH 6.8 1000 - 1100
Loss On Drying <1%

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Bromo Phenol Blue

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Specification Sheet

CAS No. 115 - 39 - 9
Chemical Formula C19H10Br4O5S
Molecular Weight 669.98
Melting Point 272 - 273º c
Dye Content ~95%
Transition Range
  		pH 3.0 - 4.6
Greenish Yellow - Reddish Blue
Absorption Max (pH3.0) 434 -439 nm
Absorption Max (pH4.6) 590 - 593 nm
Absorption (1%,1cm) pH 3.0 350 - 385
Absorption (1%,1cm) pH 4.6 940 - 1000
Loss On Drying (110º c) <1%


Bromo Thymol Blue
Specification Sheet
CAS No. 76 - 59 - 5
Chemical Formula C27H28Br2O5S
Molecular Weight 624.40
Melting Point 200 - 202º c
Dye Content ~95%
Transition Range
  		pH 5.8 - 7.6
 Yellow - Blue
Absorption Max (pH 5.8) 430 - 435 nm
Absorption Max (pH 7.6) 615 - 618 nm
Absorptivity (1%,1cm) pH 5.8 260 - 300
Absorptivity (1%,1cm) pH 7.6 470 - 520
Loss On Drying (110º c) < 3%

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o-Cresalphthalein

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Specification Sheet

CAS No. 596 - 27 - 0
Chemical Formula C22H18O4
Molecular Weight 346.38
Dye Content ~95%
Absorption Max pH 9.8 592 - 596 nm
Solution Clarity (Ethanol) To pass
Transition Range
  		pH 8.2 - 9.8
Colourless - Red
Absorptivity (1%,1cm) pH 9.8 900 - 1000
Loss On Drying (110º c) < 1%


Cresol Red
Specification Sheet
CAS No. 1733 - 12 - 16
Chemical Formula C21H18O5S
Molecular Weight 382.43
Melting Point 290º c
Dye Content ~95%
Transition Range  pH 0.5 - 1.8 Pink to Yellow
pH 7.2 - 8.8  Yellow - Purple
Absorption Max (pH 0.5)517-520 nm 1180 - 1230
Absorption Max (pH 2.5)432-436 nm 490 - 540
Absorption Max (pH 2.5)432-436 nm 490 - 540
Absorption Max (pH 2.5)571-574 nm 1000 - 1050
Loss On Drying (110º c) < 5%

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Eosin Yellowish

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Specification Sheet
CAS NO. 17372-87-1
C.I. NO. 45380
Chemical Formula C20H6Br4Na2O5
Molecular Weight 691.88
Melting Point > 300º c
Dye Content ~88%
Absorption Max 515 nm - 518 nm
Absorptivity (1%, 1cm) 1200 - 1400
Loss On Drying (110º c) < 8%


Methyl Orange
Specification Sheet
CAS No. 547-58-0
C.I. No. 13025
Chemical Formula C14H14N3NaO3S
Molecular Weight 327.34
Melting Point 300º c
Dye Content ~95%
Transition Range
  		pH 3.0 - 4.4
Pink-Orange yellow
Absorption (pH 3.0)501-504nm 1050-1150
Absorption (pH 4.4)467-471nm 750-850
Loss On Drying (110º c) < 5%

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Our Products Range
Food Colour  |  Reactive Dyes  |  Laboratory Reagents  |  Pigment Powder  |  Acid Dyes  |  Direct Dyes

Basic Fuschsin
Bromo Cresol Purple
Bromo Phenol Blue
Bromo Thymol Blue
o-Cresalphthalein
Cresol Red
Eosin Yellowish
  
Methyl Orange

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