Indicators
pH indicators for easy qualitative pH measurements and reaction analysis. Ample coverage of a wide range of pH values.
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TBPE (=Tetrabromophenolphthalein Ethyl Ester Potassium Salt) [Sensitive spectrophotometric reagent for amines, quaternary ammonium salts and other cations]
CAS:62637-91-6
Formula:
C22H13Br4KO4
Purity:
>98.0%(HPLC)
Color and Shape:
Dark green to Dark blue to Black powder to crystal
Molecular weight:
700.06
Ref: 3B-A5107
1g | 99.00 € |
Estimated delivery in United States, on Thursday 25 Apr 2024
Phenol Red (0.1% in ca. 20% Ethanol) [for Titration]
CAS:143-74-8
Formula:
C19H14O5S
Color and Shape:
Orange to Brown to Dark red clear liquid
Molecular weight:
354.38
Ref: 3B-P0703
500ml | 45.00 € |
Estimated delivery in United States, on Thursday 25 Apr 2024
Alizarin Yellow GG
CAS:584-42-9
Formula:
C13H8N3NaO5
Purity:
>97.0%(HPLC)
Color and Shape:
Light yellow to Brown powder to crystal
Molecular weight:
309.21
Ref: 3B-A0578
25g | 57.00 € |
Estimated delivery in United States, on Thursday 25 Apr 2024
Disodium Dihydrogen Ethylenediaminetetraacetate Dihydrate
CAS:6381-92-6
Formula:
C10H14N2Na2O8·2H2O
Purity:
>99.5%(T)
Color and Shape:
White powder to crystal
Molecular weight:
372.24
Ref: 3B-E0091
25g | 29.00 € | |
500g | 84.00 € |
Estimated delivery in United States, on Thursday 25 Apr 2024
Thymol Blue
CAS:76-61-9
Formula:
C27H30O5S
Color and Shape:
Yellow to Brown to Dark green powder to crystaline
Molecular weight:
466.59
Ref: 3B-T0235
1g | 30.00 € | |
25g | 95.00 € |
Estimated delivery in United States, on Thursday 25 Apr 2024
Pentamethoxy Red
CAS:1755-51-7
Formula:
C24H26O6
Purity:
min. 98.0 area%(HPLC)
Color and Shape:
White to Light yellow powder to crystal
Molecular weight:
410.47
Ref: 3B-P0631
1g | 104.00 € | |
25g | 1,130.00 € |
Estimated delivery in United States, on Thursday 25 Apr 2024
α-Naphtholphthalein
CAS:596-01-0
Formula:
C28H18O4
Purity:
>98.0%(HPLC)
Color and Shape:
White to Brown powder to crystal
Molecular weight:
418.45
Ref: 3B-N0031
1g | 40.00 € | |
5g | 111.00 € |
Estimated delivery in United States, on Thursday 25 Apr 2024
Phthalein Complexon Sodium Salt
CAS:62698-54-8
Color and Shape:
White to Light yellow to Light orange powder to crystal
Ref: 3B-P0344
1g | 123.00 € |
Estimated delivery in United States, on Thursday 25 Apr 2024
Benzyl Orange
CAS:36402-77-4
Formula:
C19H16N3NaO3S
Color and Shape:
Orange to Brown powder to crystal
Molecular weight:
389.40
Ref: 3B-B0425
1g | 74.00 € | |
5g | 233.00 € |
Estimated delivery in United States, on Thursday 25 Apr 2024
p-Naphtholbenzein
CAS:145-50-6
Formula:
C27H18O2
Color and Shape:
Orange to Amber to Dark red powder to crystal
Molecular weight:
374.44
Ref: 3B-N0028
25g | 225.00 € |
Estimated delivery in United States, on Thursday 25 Apr 2024
Calcein Blue
CAS:54375-47-2
Formula:
C15H15NO7
Purity:
>98.0%(T)
Color and Shape:
White to Orange to Green powder to crystal
Molecular weight:
321.29
Ref: 3B-U0001
1g | 249.00 € |
Estimated delivery in United States, on Thursday 25 Apr 2024
Methoxy Red
CAS:68936-13-0
Formula:
C13H14N4O·HCl
Purity:
>85.0%(T)
Color and Shape:
Black powder to crystal
Molecular weight:
278.74
Ref: 3B-M0129
25g | 356.00 € |
Estimated delivery in United States, on Thursday 25 Apr 2024
Tropaeolin O
CAS:547-57-9
Formula:
C12H9N2NaO5S
Color and Shape:
Orange to Brown powder to crystal
Molecular weight:
316.26
Ref: 3B-R0010
1g | 22.00 € |
Estimated delivery in United States, on Thursday 25 Apr 2024
Acid Yellow 36
CAS:587-98-4
Formula:
C18H14N3NaO3S
Color and Shape:
Light yellow to Brown powder to crystal
Molecular weight:
375.38
Ref: 3B-M0490
25g | 29.00 € |
Estimated delivery in United States, on Thursday 25 Apr 2024
Bromophenol Blue Sodium Salt
CAS:34725-61-6
Formula:
C19H9Br4NaO5S
Purity:
>85.0%(HPLC)
Color and Shape:
Dark green to Dark blue to Black powder to crystal
Molecular weight:
691.94
Ref: 3B-S0043
1g | 39.00 € | |
5g | 140.00 € |
Estimated delivery in United States, on Thursday 25 Apr 2024
Cresol Red Sodium Salt
CAS:62625-29-0
Formula:
C21H17NaO5S
Color and Shape:
Dark red to Brown powder to crystal
Molecular weight:
404.41
Ref: 3B-S0046
1g | 29.00 € | |
25g | 194.00 € |
Estimated delivery in United States, on Thursday 25 Apr 2024
Sodium Diphenylamine-4-sulfonate
CAS:6152-67-6
Formula:
C12H10NNaO3S
Purity:
>97.0%(HPLC)(N)
Color and Shape:
White to Light gray to Light yellow powder to crystal
Molecular weight:
271.27
Ref: 3B-D0877
1g | 44.00 € | |
25g | 482.00 € |
Estimated delivery in United States, on Thursday 25 Apr 2024
Methyl Red (0.1% in ca. 95% Ethanol) [for Titration]
CAS:493-52-7
Formula:
C15H15N3O2
Color and Shape:
Red clear liquid
Molecular weight:
269.30
Ref: 3B-M0067
100ml | 43.00 € | |
500ml | 90.00 € |
Estimated delivery in United States, on Thursday 25 Apr 2024
Benzopurpurine 4B
CAS:992-59-6
Formula:
C34H26N6Na2O6S2
Color and Shape:
Orange to Brown powder to crystal
Molecular weight:
724.72
Ref: 3B-B0781
5g | 546.00 € | |
25g | 1,346.00 € |
Estimated delivery in United States, on Thursday 25 Apr 2024