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114472
Cresol red
indicator grade, Dye content 95 %
Synonyma:
o-Cresolsulfonphthalein
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| Vám/Skladová položka | Dostupnost | Cena |
|---|---|---|
5 g | Obraťte se na zákaznický servis a vyžádejte si informaci o dostupnosti. | 1 170,00 Kč |
25 g | Obraťte se na zákaznický servis a vyžádejte si informaci o dostupnosti. | 3 140,00 Kč |
O této položce
Empirický vzorec (Hillův zápis):
C21H18O5S
Číslo CAS:
Molekulová hmotnost:
382.43
UNSPSC Code:
12171500
NACRES:
NA.47
PubChem Substance ID:
EC Number:
217-064-2
Beilstein/REAXYS Number:
343399
MDL number:
1 170,00 Kč
Obraťte se na zákaznický servis a vyžádejte si informaci o dostupnosti.
Technický servis
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indicator grade
Quality Segment
form
powder or crystals
composition
Dye content, 95%
technique(s)
titration: suitable
color
red-brown
pH
7.2-8.8, yellow to red
useful pH range
1.8-2.0, orange to yellow(acid), 7.0-8.8, yellow to violet(alkaline)
mp
290 °C
density
0.998 g/cm3
λmax
367 nm (2nd), 570 nm
application(s)
diagnostic assay manufacturing
hematology
histology
storage temp.
room temp
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
General description
Cresol Red, also known as o-cresol red, belongs to the phthalein and sulphonphthalein group of dyes. Cresol red changes color from orange to yellow at pH between 0.2-1.8 and yellow to violet at pH between 7.0-8.8. In alkaline solutions, cresol red is present as a hydrophilic dianion. The dianion is small and is violet in color, possessing a larger conjugated system than the yellow hydroxyquinone.
Application
Cresol Red is a widely used pH indicator for routine pH assessments like microbial culture media preparations. In addition, Cresol red is a suitable constituent of PCR reagent systems. Cresol Red is used as a tracking dye in DNA, RNA (agarose), and protein (polyacrylamide) electrophoresis.
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Tato položka | |||
|---|---|---|---|
| description indicator grade, Dye content 95 % | description indicator grade, Dye content 90 % | description Dye content 90 % | description indicator grade, Dye content 90 % |
| technique(s) titration: suitable | technique(s) titration: suitable | technique(s) - | technique(s) titration: suitable |
| grade indicator grade | grade indicator grade | grade - | grade indicator grade |
| color red-brown | color - | color black | color brown to very dark brown, to Very Dark Red |
| application(s) diagnostic assay manufacturing | application(s) diagnostic assay manufacturing | application(s) diagnostic assay manufacturing | application(s) diagnostic assay manufacturing |
| form powder or crystals | form powder | form powder | form powder |
| storage temp. room temp | storage temp. room temp | storage temp. room temp | storage temp. room temp |
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Skladovací třída
11 - Combustible Solids
wgk
WGK 3
ppe
dust mask type N95 (US), Eyeshields, Gloves
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