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Pamoic acid

Pamoic acid structure

CAS No:
130-85-8
Formula:
C23H16O6
Chemical Name:
Pamoic acid
Synonyms:
2-Naphthalenecarboxylic acid,4,4′-methylenebis[3-hydroxy-;2-Naphthoic acid,4,4′-methylenebis[3-hydroxy-;4,4′-Methylenebis[3-hydroxy-2-naphthalenecarboxylic acid];2,2′-Dihydroxy-1,1′-dinaphthylmethane-3,3′-dicarboxylic acid;Embonic acid;Pamoic acid;Bis(2-hydroxy-3-carboxy-1-naphthyl)methane;4,4′-Methylenebis[3-hydroxy-2-naphthoic acid];NSC 30188;NSC 40132;KG 122;4,4′-Methylenebis(3-hydroxy-2-naphthalenecarboxylic acid);4-[(3-Carboxy-2-hydroxynaphthalen-1-yl)methyl]-3-hydroxynaphthalene-2-carboxylic acid;108626-78-4;122541-93-9;47620-91-7;50857-36-8;67232-45-5
Categories:
Analytical Chemistry > Food Safety

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Description

Pamoic acid is a dicarboxylic acid. It derives from a 2-naphthoic acid. It is a conjugate acid of a pamoate(2-).

Pamoic acid Basic Attributes

Molecular Weight：

388.37

Exact Mass：

388.37

BRN：

901319

EC Number：

204-998-0

UNII：

7RRQ8QZ38N

NSC Number：

40132|30188

DSSTox ID：

DTXSID9048984

HScode：

29182990

Characteristics

PSA：

115

XLogP3：

5.8

Appearance：

Yellow to yellow-green Crystalline Powder

Density：

1.5±0.1 g/cm3

Melting Point：

315 °C

Flash Point：

356.5±28.0 °C

Refractive Index：

1.782

Water Solubility：

Practically insoluble in water;soluble in nitrobenzene, pyridine

Safety Information

Transport codes：

NONH for all modes of transport

wgk germany：

hazard class code：

36/37/38-48-41-37/38-20/21/22

safety instructions：

26-36-45-36/37/39-22

RTECS Number：

QL2180000

Marks：

Xi,Xn

Precautionary statement(s)：

P261-P305 + P351 + P338

Hazard Statements：

H315-H319-H335

GHS Classification：

|Warning|H315 (91.18%): Causes skin irritation [Warning Skin corrosion/irritation]|P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, and P501|Aggregated GHS information provided by 69 companies from 10 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.|H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]|P264, P270, P273, P301+P312, P330, P391, and P501|The GHS information provided by 1 company from 1 notification to the ECHA C&L Inventory.

Drug Information

MeSH Entry Terms：

4,4'-methylenebis(3-hydroxy)-2-naphthoic acid naphthalenecarboxylic acid

Pamoic acid Use and Manufacturing

Methods of Manufacturing

may be prepared by condensing commercially available 3 -hydroxy-2 -naphthoic acid (Acros Organics, Fairlawn, NJ) with formaldehyde or paraformaldehyde in the presence of sodium hydroxide (Strohbach, 1901, Chem. Ber. 34:4148; Hosaeus, 1892, Chem. Ber.25:3215; Brass, 1928, Chem. Ber. 61 :1001), as shown in Scheme I.A method of claim 4 wherein X is the anion of a compound selected from the following lists of acids:...4-hydroxyisophthalic acid;2-hydroxynaphthalene-1-carboxylic acid;6-hydroxynaphthalene-1-carboxylic acid;5, 5'-methylenebis-4-hydroxybenzoic acid;embonic acid;

Uses

Agonist of the orphan G protein-coupled receptor GPR35: a potent activator of extracellular signal-regulated kinase and β-arrestin2 with antinociceptive activity. Used as an inhibitor in the real-time fluorescence enzymatic characterizationstudy of specialized human DNA polymerases.

Manufacturing Info：

2-Naphthalenecarboxylic acid, 4,4'-methylenebis[3-hydroxy-: ACTIVE

Computed Properties

Molecular Weight:388.4
XLogP3:5.8
Hydrogen Bond Donor Count:4
Hydrogen Bond Acceptor Count:6
Rotatable Bond Count:4
Exact Mass:388.09468823
Monoisotopic Mass:388.09468823
Topological Polar Surface Area:115
Heavy Atom Count:29
Complexity:569
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

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