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CAS No 130-85-8 , 4-[(3-carboxy-2-hydroxynaphthalen-1-yl)methyl]-3-hydroxynaphthalene-2-
carboxylic acid Search by region : China

  • Name: 4-[(3-carboxy-2-hydroxynaphthalen-1-yl)methyl]-3-hydroxynaphthalene-2-
    carboxylic acid
  • Synonyms: NSC 30188; 130-85-8;Embonic acid; EINECS 204-998-0; NSC30188; CHEBI:50186; Pamosaeure;4-[(3-carboxy-2-hydroxynaphthalen-1-yl)methyl]-3-hydroxynaphthalene-2-
    carboxylic acid; 4,4'-Methylenebis(3-hydroxy-2-naphthoic acid);
  • CAS Registry Number:
  • Melting Point: 300 ºC
  • Flash Point: 356.5ºC
  • Boiling Point: 642.7 ºC at 760 mmHg
  • Density: 1.499 g/cm3
  • Safety Statements: R36/37/38
  • Hazard Symbols: Xi: Irritant;
  • HS Code: 29182990
  • Flash Point: 356.5ºC
  • EINECS: 204-998-0
  • Molecular Weight: 388.36954
  • InchiKey: WLJNZVDCPSBLRP-UHFFFAOYSA-N
  • InChI: 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)
  • Risk Statements: S26;S36
  • Molecular Formula: C23H16O6
  • Molecular Structure:CAS No:130-85-8 4-[(3-carboxy-2-hydroxynaphthalen-1-yl)methyl]-3-hydroxynaphthalene-2-<br />carboxylic acid

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References of 4-[(3-carboxy-2-hydroxynaphthalen-1-yl)methyl]-3-hydroxynaphthalene-2-
carboxylic acid
Title: Pamoic Acid
CAS Registry Number: 130-85-8
CAS Name: 4,4￠-Methylenebis[3-hydroxy-2-naphthalenecarboxylic acid]
Synonyms: 4,4￠-methylenebis(3-hydroxy-2-naphthoic acid); 4,4￠-methylenedi(3-hydroxy-2-naphthoic acid); 2,2￠-dihydroxy-1,1￠-dinaphthylmethane-3,3￠-dicarboxylic acid; embonic acid
Molecular Formula: C23H16O6
Molecular Weight: 388.37
Percent Composition: C 71.13%, H 4.15%, O 24.72%
Literature References: Prepn from 2-hydroxy-3-naphthoic acid + formaldehyde: Strohback, Ber. 34, 4162 (1901); Brass, Sommer, ibid. 61, 993 (1928); Barber, Gaimster, J. Appl. Chem. 2, 565 (1952). Prepn of salts: Puetzer, US 2397903 (1946 to Vick Chem.); Barber, US 2641610 (1953 to May & Baker).
Properties: Crystals from dil pyridine, dec above 280° without melting. Practically insoluble in water, alcohol, ether, benzene, acetic acid. Sparingly sol in chloroform; sol in nitrobenzene, pyridine.
 
Derivative Type: Methyl ether
Molecular Formula: C24H18O6
Molecular Weight: 402.40
Percent Composition: C 71.63%, H 4.51%, O 23.86%
Properties: Yellow crystals from dil methanol, dec 277-282°.