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Merck
CN

1493000

USP

Pamoic acid

United States Pharmacopeia (USP) Reference Standard

Synonym(s):

1,1′-Methylene-bis(2-hydroxy-3-naphthoic acid), 4,4′-Methylenebis(3-hydroxy-2-naphthoic acid), Embonic acid

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About This Item

Empirical Formula (Hill Notation):
C23H16O6
CAS Number:
130-85-8
Molecular Weight:
388.37
UNSPSC Code:
41116107
NACRES:
NA.24
PubChem Substance ID:
329750660
MDL number:
MFCD00004079
Beilstein/REAXYS Number:
901319

Key Documents

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Product Name

Pamoic acid, United States Pharmacopeia (USP) Reference Standard

InChI key

WLJNZVDCPSBLRP-UHFFFAOYSA-N

SMILES string

OC(=O)c1cc2ccccc2c(Cc3c(O)c(cc4ccccc34)C(O)=O)c1O

InChI

1S/C23H16O6/c24-20-16(14-7-3-1-5-12(14)9-18(20)22(26)27)11-17-15-8-4-2-6-13(15)10-19(21(17)25)23(28)29/h1-10,24-25H,11H2,(H,26,27)(H,28,29)

grade

pharmaceutical primary standard

API family

cycloguanil, oxantel

manufacturer/tradename

USP

mp

≥300 °C (dec.)

application(s)

pharmaceutical (small molecule)

format

neat

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Analysis Note

These products are for test and assay use only. They are not meant for administration to humans or animals and cannot be used to diagnose, treat, or cure diseases of any kind.  ​

Application

Pamoic acid USP reference standard, intended for use in specified quality tests and assays as specified in the USP compendia.
Also, for use with USP monograph such as Pyrantel Pamoate.

General description

This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets have been developed and issued under the Authority of the issuing Pharmacopoeia.For further information and support please go to the website of the issuing Pharmacopoeia.

Other Notes

Sales restrictions may apply.

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

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Sara Montminy Paquette et al.
Pharmaceutical research, 31(8), 2065-2077 (2014-02-22)
Long-acting injectables (LAIs) are increasingly recognized as an effective therapeutic approach for treating chronic conditions. Many LAIs are formulated to create a poorly soluble depot from which the active agent is delivered over time. This long residing depot can cause

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