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Key Documents

P5758

Sigma-Aldrich

Phenolphthalein monophosphate bis(cyclohexylammonium) salt

powder, ≥85% (TLC)

Synonym(s):

4-hydroxyphenyl 4-(3-oxo-1,3-dihydro-2-benzofuran-1-yl)phenyl hydrogen phosphate bis(cyclohexylammonium) salt

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About This Item

Empirical Formula (Hill Notation):
C20H15O7P · 2C6H13N
CAS Number:
Molecular Weight:
596.65
EC Number:
MDL number:
UNSPSC Code:
12352204
PubChem Substance ID:
NACRES:
NA.32

Quality Level

Assay

≥85% (TLC)

form

powder

impurities

≤10% solvent

color

white to off-white

solubility

methanol: 10 mg/mL, clear to very slightly hazy, colorless

storage temp.

−20°C

SMILES string

NC1CCCCC1.NC2CCCCC2.Oc3ccc(cc3)C4(OC(=O)c5ccccc45)c6ccc(OP(O)(O)=O)cc6

InChI

1S/C20H15O7P.2C6H13N/c21-15-9-5-13(6-10-15)20(18-4-2-1-3-17(18)19(22)26-20)14-7-11-16(12-8-14)27-28(23,24)25;2*7-6-4-2-1-3-5-6/h1-12,21H,(H2,23,24,25);2*6H,1-5,7H2

InChI key

HANAZWFQWVNYKU-UHFFFAOYSA-N

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Application

Phenolphthalein monophosphate bis(cyclohexylammonium) salt has been used as a standard substrate in competitive enzyme-linked immunosorbent assay (ELISA) to determine the progesterone (P4) concentration in the whole milk samples.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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Articles

Nitroblue Tetrazolium (NBT) is used with the alkaline phosphatase substrate 5-Bromo- 4-Chloro-3-Indolyl Phosphate (BCIP) in western blotting and immunohistological staining procedures. These substrate systems produce an insoluble NBT diformazan end product that is blue to purple in color and can be observed visually.

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