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05-6580

Sigma-Aldrich

Cresol red

JIS special grade

Synonym(s):

o-Cresolsulfonphthalein

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About This Item

Empirical Formula (Hill Notation):
C21H18O5S
CAS Number:
Molecular Weight:
382.43
Beilstein:
343399
EC Number:
MDL number:
UNSPSC Code:
12171502
PubChem Substance ID:
Pricing and availability is not currently available.

grade

JIS special grade

availability

available only in Japan

pH

7.2-8.8, yellow to red

SMILES string

Cc1cc(ccc1O)C2(OS(=O)(=O)c3ccccc23)c4ccc(O)c(C)c4

InChI

1S/C21H18O5S/c1-13-11-15(7-9-18(13)22)21(16-8-10-19(23)14(2)12-16)17-5-3-4-6-20(17)27(24,25)26-21/h3-12,22-23H,1-2H3

InChI key

OBRMNDMBJQTZHV-UHFFFAOYSA-N

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Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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K Horie et al.
Analytical biochemistry, 137(1), 80-87 (1984-02-01)
A highly sensitive quantitative method was developed to detect protons released or taken up upon ligand binding. A small change in pH due to proton release or uptake was detected by measuring the difference in the absorbance of a pH
F Ahmadi et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 67(2), 412-419 (2006-09-09)
The effects of cationic cetyltrimethylammonium bromide (CTAB), hexadecylpyridinum chloride (HDPC) and anionic sodium dodecylsulphate (SDS) surfactants on dissociation constants and transition intervals of methyl red, methyl orange and cresol red were studied spectrophotometrically. The results show that all studied indicators
H S Van Walraven et al.
European journal of biochemistry, 144(3), 555-561 (1984-11-02)
ATP hydrolysis-induced proton translocation and electric potential generation have been studied in ATPase proteoliposomes by means of various optical probes. The proteoliposomes consisted of reconstituted ATPase complex and native lipid mixture isolated from the thermophilic cyanobacterium Synechococcus 6716 [Van Walraven
R Schubert
Zentralblatt fur Bakteriologie, Mikrobiologie und Hygiene. Serie B, Umwelthygiene, Krankenhaushygiene, Arbeitshygiene, praventive Medizin, 187(3), 266-268 (1989-02-01)
A new medium is described for the isolation of P. aeruginosa organisms which have been damaged by chlorination. This medium utilises the fact that with arginine. P. aeruginosa produces a strongly alkaline reaction resulting in an easily identified colour change
Maurizio Caselli et al.
Annali di chimica, 92(5-6), 501-512 (2002-07-20)
The pKa of 3',3",5',5"tetrabromo-m-cresolsulfonephtalein (Bromocresol Green) and o-cresolsulphonephtalein (Cresol Red) was spectrophotometrically measured in a water/AOT/isooctane microemulsion in the presence of a series of buffers carrying different charges at different water/surfactant ratios. Extended Principal Component Analysis was used for a

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