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Carboxylic Acids & SaltsSynthesisAvailable on request

Pamoic acid, 98%

Synonyms: 1,1'-Methylene-bis(2-hydroxy-3-naphthoic acid) · 4,4'-Methylenebis(3-hydroxy-2-naphthoic acid) · Embonic acid · 2-Naphthalenecarboxylic acid, 4,4'-methylenebis[3-hydroxy-

CAS No.130-85-8
FormulaC23H16O6
Mol. weight388.40
Catalogue No.VQ-008568
Purity98%
HSN29420090

Pamoic acid (CAS 130-85-8) – carboxylic acid, Synthesis grade, 98%. C23H16O6, MW 388.4. Request a quote: COA, bulk packs and worldwide export.

Pack sizesPrice on quotation · bulk available
25 g
100 g
500 g
5 x 1 kg
Bulk / custom pack · kg to MT
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Batch COA with every lot
16-section GHS SDS
Export to 120+ countries
DG-compliant packing

About Pamoic acid, 98%

Pamoic acid is a carboxylic acid in Synthesis grade carrying the CAS registry number 130-85-8, specified at 98% purity. Its molecular formula is C23H16O6 and its molecular weight is 388.4 g/mol. Its systematic (IUPAC) name is 4-[(3-carboxy-2-hydroxynaphthalen-1-yl)methyl]-3-hydroxynaphthalene-2-carboxylic acid. Common synonyms include 4,4'-Methylenebis(3-hydroxy-2-naphthoic acid) and Embonic acid.

The material typically appears as a faint yellow to yellow powder. Key physical data: a melting point of ≥300 °C (dec.). Keep the container tightly sealed and store it in a cool, dry area. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

It is commonly used for pharmaceutical synthesis and organic synthesis. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies Pamoic acid in 25 g, 100 g, 500 g and 5 x 1 kg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

  • Pharmaceutical synthesis
  • Organic synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product namePamoic acid, 98%
Catalogue No.VQ-008568
CAS Number130-85-8
IUPAC name4-[(3-carboxy-2-hydroxynaphthalen-1-yl)methyl]-3-hydroxynaphthalene-2-carboxylic acid
Molecular formulaC23H16O6
Molecular weight388.4 g/mol
Exact mass388.0947
GradeSynthesis
Purity / assay98%
HSN code29420090
InChIKeyWLJNZVDCPSBLRP-UHFFFAOYSA-N
SMILESC1=CC=C2C(=C1)C=C(C(=C2CC3=C(C(=CC4=CC=CC=C43)C(=O)O)O)O)C(=O)O
PubChem CID8546
Physical properties
Physical formPowder
AppearanceFaint yellow to yellow powder
Melting point≥300 °C (dec.)
LogP (XLogP3)5.8
H-bond donors / acceptors4 / 6
TPSA115 Ų
Synonyms1,1'-Methylene-bis(2-hydroxy-3-naphthoic acid), 4,4'-Methylenebis(3-hydroxy-2-naphthoic acid), Embonic acid, 2-Naphthalenecarboxylic acid, 4,4'-methylenebis[3-hydroxy-, 2-Naphthalenecarboxylic acid, 4,4'-methylenebis(3-hydroxy-, 4,4'-methylenebis(3-hydroxynaphthalene-2-carboxylic acid), 4-((3-carboxy-2-hydroxynaphthalen-1-yl)methyl)-3-hydroxynaphthalene-2-carboxylic acid, 4,4'-methylenebis(3-hydroxy-2-naphthalenecarboxylic acid), 2-Naphthoic acid, 4,4'-methylenebis(3-hydroxy-, 4-[(3-carboxy-2-hydroxy-1-naphthyl)methyl]-3-hydroxy-naphthalene-2-carboxylic acid, 4-[(3-carboxy-2-oxidanyl-naphthalen-1-yl)methyl]-3-oxidanyl-naphthalene-2-carboxylic acid, 4,4'-Methylen-bis-(3-hydroxy-2-naphthoesaeure)

Safety & hazard information (GHS)

GHS07 Harmful / irritant
Harmful / irritant

Signal word: Warning

Hazard statements

  • H302Harmful if swallowed
  • H315Causes skin irritation
  • H319Causes serious eye irritation
  • H335May cause respiratory irritation
  • H412Harmful to aquatic life with long lasting effects

Precautionary statements: P261, P264, P264 + P265, P270, P271, P273, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P330, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Frequently asked questions

What is the CAS number of Pamoic acid, 98%?

The CAS Registry Number of Pamoic acid, 98% is 130-85-8. It is also known as 1,1'-Methylene-bis(2-hydroxy-3-naphthoic acid), 4,4'-Methylenebis(3-hydroxy-2-naphthoic acid), Embonic acid.

What is the molecular formula and molecular weight of Pamoic acid, 98%?

Pamoic acid, 98% has the molecular formula C23H16O6 and a molecular weight of 388.4 g/mol. Its IUPAC name is 4-[(3-carboxy-2-hydroxynaphthalen-1-yl)methyl]-3-hydroxynaphthalene-2-carboxylic acid.

Which grade and pack sizes of Pamoic acid, 98% can I order?

We supply Pamoic acid, 98% in Synthesis (98%) grade, in 25 g, 100 g, 500 g, 5 x 1 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Pamoic acid, 98%?

Yes. Every lot of Pamoic acid, 98% is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Pamoic acid, 98% be shipped internationally?

Yes. Pamoic acid, 98% is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.

Enquire about Pamoic acid, 98%

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Why buyers choose Vaqora

  • Batch-traceable lots with COA
  • R&D packs to multi-tonne supply
  • IATA / IMDG dangerous-goods packing
  • EXW, FOB, CIF, DAP Incoterms
  • Custom synthesis & sourcing
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