pH Indicators

pH Indicators from Santa Cruz Biotechnology, Inc. have many applications in biochemical and biomedical research. Click on the product of choice to view detailed information such as the chemical structure and specific chemical properties. In stock pH Indicators are available for immediate shipping.

indicates a highly recommended product based on customer preference.

PRODUCT NAME/Application CAS Catalog # QUANTITY Price Citations RATING
BCECF/AM
BCECF/AM is a readily membrane-permeable fluorescent indicator for the measurement of cytoplasmic pH
117464-70-7 sc-202492
1 mg
$119.00
3
(1)
2prime,7prime-bis(2-Carboxyethyl)-5(6)-carboxyfluorescein
2′,7′-bis(2-Carboxyethyl)-5(6)-carboxyfluorescein is Fluorescent cytoplasmic pH indicator
85138-49-4 sc-202883
1 mg
$136.00
3
(0)
Neutral Red
Neutral Red is a common histology stain used to determine cell viability.
553-24-2 sc-203748
sc-203748A
50 g
100 g
$101.00
$143.00
1
(1)
Pararosaniline hydrochloride
Pararosaniline hydrochloride is the primary component of Basic Fuchsin mixtures
569-61-9 sc-203751
sc-203751A
25 g
100 g
$97.00
$306.00
4
(0)
Phenol Red
Phenol Red is used in culture media, phenol red identifies pH changes from neutral (red) to acidic (yellow) values
143-74-8 sc-203752
sc-203752A
sc-203752B
5 g
25 g
200 g
$21.00
$72.00
$300.00
1
(1)
5-Carboxyfluorescein
5-Carboxyfluorescein is a highly soluble dye which is utilized as a pH indicator
76823-03-5 sc-205903
sc-205903A
100 mg
250 mg
$87.00
$240.00
0
(1)
Bromocresol Purple
Bromocresol Purple is a dye used in the determination of serum-albumin
115-40-2 sc-205992
sc-205992A
5 g
10 g
$21.00
$36.00
0
(0)
Alizarin Red S
Alizarin Red S is used to determine the presence of calcific deposition by cells of an osteogenic lineage
130-22-3 sc-205998
sc-205998A
sc-205998B
sc-205998C
25 g
100 g
250 g
1 kg
$45.00
$113.00
$240.00
$825.00
4
(1)
Malachite Green oxalate salt
Malachite Green oxalate salt is a biological counterstain to fuchsin and safranin
2437-29-8 sc-206010
sc-206010A
sc-206010B
sc-206010C
25 g
100 g
250 g
1 kg
$24.00
$37.00
$60.00
$180.00
1
(0)
Phenol Red Sodium Salt
Phenol Red Sodium Salt is a water soluble pH indicator commonly employed in cell biology laboratories as a cell tissue culture pH marker
34487-61-1 sc-206017
sc-206017A
5 g
25 g
$31.00
$90.00
2
(0)
Bromothymol blue sodium salt
Bromothymol blue sodium salt is a pH indicator which is yellow at pH ≤ 6.0 and blue at pH ≥ 7.6
34722-90-2 sc-206018
sc-206018A
sc-206018B
10 g
25 g
100 g
$41.00
$77.00
$180.00
1
(0)
Resorufin sodium salt
Resorufin sodium salt is an anionic tricyclic phenoxazineone dye compound
34994-50-8 sc-206019
sc-206019A
sc-206019B
1 g
10 g
50 g
$137.00
$650.00
$2,087.00
4
(0)
Chlorophenol Red
Chlorophenol Red is used to detect chlorine dioxide in drinking water
4430-20-0 sc-206022
10 g
$85.00
0
(0)
3′,3′′,5′,5′′-Tetraiodophenolsulfonephthalein
3′,3′′,5′,5′′-Tetraiodophenolsulfonephthalein is a pH indicator
4430-24-4 sc-206023
sc-206023A
5 g
25 g
$53.00
$260.00
0
(0)
Methyl orange
Methyl orange is a pH indicator dye for titrations
547-58-0 sc-206030
sc-206030A
sc-206030B
25 g
100 g
250 g
$27.00
$50.00
$110.00
2
(0)
Bromocresol Green sodium salt
Bromocresol Green sodium salt is a dye used as a pH indicator
62625-32-5 sc-206036
sc-206036A
25 g
100 g
$144.00
$350.00
0
(1)
2-Pyridinecarboxaldehyde 4-nitrophenylhydrazone
2-Pyridinecarboxaldehyde 4-nitrophenylhydrazone is a useful pH indicator and Pd reagent
70421-66-8 sc-206044
5 g
$70.00
0
(0)
Bromothymol Blue
Bromothymol Blue is a pH indicator for weak acids and bases
76-59-5 sc-206047
sc-206047A
5 g
25 g
$22.00
$76.00
0
(0)
Bromocresol Green
Bromocresol Green is a tracking dye for gel electrophoresis
76-60-8 sc-206048
25 g
$150.00
0
(0)
Thymol Blue
Thymol Blue is a useful pH indicator compound
76-61-9 sc-206049
sc-206049A
5 g
25 g
$30.00
$90.00
2
(0)
Phenolphthalein
Phenolphthalein is a commonly used colorimetric pH indicator
77-09-8 sc-206050
sc-206050A
100 g
500 g
$38.00
$131.00
1
(1)
Methyl Red sodium salt
Methyl Red sodium salt is a dye used for pH detection
845-10-3 sc-206055
sc-206055A
sc-206055B
sc-206055C
25 g
100 g
250 g
500 g
$27.00
$60.00
$135.00
$250.00
1
(0)
Indigo carmine
Indigo carmine is a tissue stain, pH indicator, and tool for the determination of hypochlorite
860-22-0 sc-206056B
sc-206056
sc-206056A
5 g
25 g
100 g
$13.00
$36.00
$115.00
3
(1)
1,3,6,8-Pyrenetetrasulfonic acid tetrasodium salt
1,3,6,8-Pyrenetetrasulfonic acid tetrasodium salt is a fluorescent probe and pH indicator
59572-10-0 sc-208786
1 g
$94.00
0
(1)
5(6)-Carboxy-2prime,7prime-dichlorofluorescein
5(6)-Carboxy-2′,7′-dichlorofluorescein is a useful pH-indicator
111843-78-8 sc-210420
100 mg
$108.00
0
(0)
5(6)-Carboxynaphthofluorescein
5(6)-Carboxynaphthofluorescein is a pH-indicator
128724-35-6 sc-210424
25 mg
$90.00
0
(0)
6,8-Dihydroxy-1,3-pyrenedisulfonic acid disodium salt
6,8-Dihydroxy-1,3-pyrenedisulfonic acid disodium salt is a pH-sensitive dye
61255-63-8 sc-210562
100 mg
$177.00
0
(0)
7-Hydroxy-4-(trifluoromethyl)coumarin
7-Hydroxy-4-(trifluoromethyl)coumarin is a fluorescent pH-indicator
575-03-1 sc-210622
sc-210622A
250 mg
1 g
$31.00
$65.00
0
(0)
7-Hydroxy-4-methyl-3-coumarinylacetic acid
7-Hydroxy-4-methyl-3-coumarinylacetic acid is a fluorescence probe and pH indicator
5852-10-8 sc-210625
100 mg
$107.00
0
(0)
7-Hydroxycoumarin-3-carboxylic acid
7-Hydroxycoumarin-3-carboxylic acid is a pH-indicator that can be immobilized on a support to give a pH sensor
779-27-1 sc-210626
100 mg
$165.00
0
(0)
Chromoionophore XI
Chromoionophore XI is a lipophilic fluorescent pH indicator
138833-46-2 sc-211092
50 mg
$148.00
0
(0)
1,1prime-Diethyl-2,4prime-cyanine iodide
1,1′-Diethyl-2,4′-cyanine iodide is a dye indicator effective in pH range 4.5-6.5
634-21-9 sc-213423
5 g
$300.00
0
(0)
alpha-Naphtholbenzein
α-Naphtholbenzein is a pH indicator (pH 0.0-0.8/ pH 8.2-10.0)
145-50-6 sc-214451
sc-214451A
5 g
25 g
$37.00
$132.00
0
(0)
Alizarin yellow GG
Alizarin yellow GG is a useful acid-base indicator for nutrient media
584-42-9 sc-214521
25 g
$32.00
0
(0)
Chlorophenol Red sodium salt
Chlorophenol Red sodium salt is a pH indicator
123333-64-2 sc-214683
10 g
$114.00
0
(0)
m-Cresol Purple
m-Cresol Purple is a pH indicator dye
2303-01-7 sc-215274
sc-215274A
sc-215274B
1 g
5 g
10 g
$20.00
$51.00
$90.00
1
(0)
Nitrazine Yellow
Nitrazine Yellow is a pH indicator with a variety of applications
5423-07-4 sc-215576
sc-215576A
1 g
5 g
$31.00
$88.00
1
(0)
o-Cresolphthalexon
o-Cresolphthalexon is an alkaline earth metal indicator
2411-89-4 sc-215602
sc-215602A
1 g
5 g
$23.00
$45.00
0
(0)
Pyrocatechol Violet
Pyrocatechol Violet is a complexometric indicator
115-41-3 sc-215764
sc-215764A
5 g
10 g
$55.00
$95.00
0
(0)
Quinaldine Red
Quinaldine Red is a cationic fluorescent probe
117-92-0 sc-215771
sc-215771A
sc-215771B
sc-215771C
5 g
25 g
100 g
250 g
$50.00
$180.00
$620.00
$1,400.00
1
(0)
Thiazole yellow G
Thiazole yellow G is a thiazole compound dye
1829-00-1 sc-215968
sc-215968A
5 g
25 g
$20.00
$45.00
0
(0)
6-Carboxy-fluorescein diacetate N-succinimidyl ester
6-Carboxy-fluorescein diacetate N-succinimidyl ester is a fluorometry reagent used to study pH in bacteria
150206-15-8 sc-217319
5 mg
$124.00
0
(0)
Propyl red
CAS: 2641-01-2, MF: C19H23N3O2, MW: 325.40
2641-01-2 sc-236489
5 g
$38.00
0
(0)
Chromoionophore XVII
156122-91-7 sc-239554
100 mg
$1,300.00
0
(0)
Patent blue V sodium salt
Patent blue V sodium salt is a pH dependent dye
20262-76-4 sc-250653
sc-250653A
10 g
25 g
$29.00
$31.00
0
(0)
Neutral Red Solution
Neutral Red Solution is a vital dye used as an indicator and biological stain
553-24-2 sc-281691
100 ml
$28.00
4
(1)
5(6)-carboxyfluorescein, mixed isomers
5(6)-carboxyfluorescein, mixed isomers is a pH indicator
72088-94-9 sc-291088
sc-291088A
1 g
5 g
$43.00
$144.00
0
(0)
6,7-Dihydroxy-4-methylcoumarin
6,7-Dihydroxy-4-methylcoumarin is a product suitable as a pH-indicator
529-84-0 sc-291439
25 g
$165.00
0
(0)
8-Hydroxypyrene-1,3,6-trisulfonic acid, trisodium salt
8-Hydroxypyrene-1,3,6-trisulfonic acid, trisodium salt is or 6358-69-6), a fluorescent pH indicator
27928-00-3 sc-291738
1 g
$110.00
0
(1)
9-Aminoacridine free base
9-Aminoacridine free base is a mutagenic fluorescent dye and an intracellular pH indicator
90-45-9 sc-291761A
sc-291761
sc-291761B
sc-291761C
250 mg
1 g
5 g
10 g
$30.00
$76.00
$262.00
$481.00
0
(1)
Bromophenol Red
2800-80-8 sc-293959
sc-293959A
1 g
25 g
$75.00
$700.00
0
(0)
Benzopurpurine 4B
Benzopurpurine 4B is a biological stain and pH indicator
992-59-6 sc-311286
100 g
$46.00
0
(0)
Congo Red
Congo Red is an amyloidophylic dye that stains β sheet aggregates
573-58-0 sc-359843
sc-359843A
sc-359843B
sc-359843C
25 g
100 g
250 g
1 kg
$30.00
$80.00
$170.00
$480.00
2
(1)
8-Hydroxy-N,N,Nprime,Nprime,NPrime,NPrime-hexamethylpyrene-1,3,6-trisulfonamide
8-Hydroxy-N,N,N′,N′,N",N"-hexamethylpyrene-1,3,6-trisulfonamide is a pH indicator
127044-59-1 sc-396648
10 mg
$366.00
0
(0)

Santa Cruz Biotechnology, Inc. is a world leader in the development of products for the biomedical research market. Call us Toll Free at 1-800-457-3801.
Copyright © 2007-2020 Santa Cruz Biotechnology, Inc. All Rights Reserved. "Santa Cruz Biotechnology", and the Santa Cruz Biotechnology, Inc. logo, "Santa Cruz Animal Health", "San Juan Ranch", "Supplement of Champions", the San Juan Ranch logo, "Ultracruz", "Chemcruz", "Immunocruz", "Exactacruz", and "EZ Touch" are registered trademarks of Santa Cruz Biotechnology, Inc.
All trademarks are the property of their respective owners.