CAS Number: 5965-83-3 UN Number: UN2585 Molar Mass: 254.22g/mol Grade: Meets ACS Specifications, Meets Reagent Specifications for testing USP/NF monographs

Synonyms: 1-Naphthylamine-4-sulfonic acid, Naphthionic acid Hill Formula: C₁₀H₉NO₃S CAS Number: 84-86-6 UN Number: UN2585

Empirical Formula: C₅H₅NO₃S Linear Formula: C₅H₅NO₃S Formula Weight: 159.16 MDL Number: MFCD00234080 Purity: 97% Melting Point: 244-249 °C

Synonyms: Armstrong acid Hill Formula: C₁₀H₈O₆S₂ CAS Number: 81-04-9 UN Number: UN2585

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Formula: CH3C6H4SO3H * H2O Grade: ACS CAS No.: 6192-52-5 UN No.: UN2585 pH: 1 (650 g/l, H2O, 20°C) (anhydrous substance) Solubility: 670 g/l (20°C) Melting Point: 56°C Elimination of water of crystallisation Molar Mass: 190.22 g/mol Bulk Density: 510 kg/m3 Boiling Point: …

Synonym(s): 4-Methoxymetanilic acid Empirical Formula: C₇H₉NO₄S Linear Formula: H₂NC₆H₃(OCH₃)SO₃H Formula Weight: 203.22 MDL Number: MFCD00035759 Purity: 98% Melting Point: 305 °C (dec.)(lit.)

Empirical Formula: C₅H₅NO₃S Linear Formula: C₅H₅NO₃S Formula Weight: 159.16 MDL Number: MFCD00006381 Purity: ≥98.0% (T) Melting Point: >300 °C(lit.) Beilstein Registry Number: 120822

Synonym(s): (2-Pyridyl)hydroxymethanesulfonic acid Empirical Formula: C₆H₇NO₄S Linear Formula: C₆H₇NO₄S Formula Weight: 189.19 MDL Number: MFCD00006307 Purity: 97% Melting Point: 224-227 °C…

Synonym(s): 4-Pyridineethanesulfonic acid Empirical Formula: C₇H₉NO₃S Linear Formula: C₇H₉NO₃S Formula Weight: 187.22 MDL Number: MFCD00006452 Purity: 97% Melting Point: 297-299 °C (dec.)(lit.) …

Synonym(s): 1-Naphthylamine-7-sulfonic acid; Cleves acid-1,7 Empirical Formula: C₁₀H₉NO₃S Linear Formula: H₂NC₁₀H₆SO₃H Formula Weight: 223.25 MDL Number: MFCD00004032 Purity: ≥97% Melting Point: …