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Substance Name: 1,3-Naphthalenedisulfonic acid, 6-amino-
RN: 118-33-2

Classification Code

  • Skin / Eye Irritant

Molecular Formula

  • C10-H9-N-O6-S2

Molecular Weight

  • 303.314
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Names and Synonyms


  • 2-Aminonaphthalene-5,7-disulfonic acid
  • 2-Naftylamin-5,7-disulfonan sodny
  • 2-Naftylamin-5,7-disulfonan sodny [Czech]
  • 2-Naphthylamine, 5,7-disulfo-
  • 2-Naphthylamine-5,7-disulfonic acid
  • 4-14-00-02811 (Beilstein Handbook Reference)
  • 6-Amino-1,3-naphthalene disulfonic acid
  • 6-Amino-1,3-naphthalenedisulfonic acid
  • Amino-I acid
  • Amino-J acid
  • Amino-J-acid
  • beta-Naphthylamine-5,7-disulfonic acid
  • BRN 2157980
  • EINECS 204-246-1
  • Kyselina amino-i
  • Naphthalene-1,3-disulfonic acid, 6-amino-
  • NSC 4157

Systematic Names

  • 1,3-Naphthalenedisulfonic acid, 6-amino-
  • 6-Aminonaphthalene-1,3-disulphonic acid

Superlist Name

  • 6-Amino-1,3-naphthalenedisulfonic acid

Registry Numbers

CAS Registry Number

  • 118-33-2

Other Registry Number

  • 87309-33-9

System Generated Number

  • 0000118332

Structure Descriptors








Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
rat LD50 oral 2gm/kg (2000mg/kg)   "Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J., Prague, Czechoslovakia, Avicenum, 1986Vol. -, Pg. 1059, 1986.

Physical Properties

Physical Property Value Units Temp (deg C) Source
log P (octanol-water) -1.850 (none)   EST
Water Solubility 2.29E+05 mg/L 15 EXP
Vapor Pressure 1.61E-15 mm Hg 25 EST
Henry's Law Constant 4.06E-20 atm-m3/mole 25 EST
Atmospheric OH Rate Constant 9.67E-12 cm3/molecule-sec 25 EST

Physical property data is provided to ChemIDplus by SRC, Inc.