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CAS No 633-96-5 , sodium

  • Name: sodium
  • Synonyms: C.I. Acid Orange 7; Colacid Orange; Fenazo Orange; Curol Orange;4-[(2E)-2-(2-oxonaphthalen-1-ylidene)hydrazinyl]benzenesulfonate;sodium;Acid orange 7; Persian Orange; Orange II; Acid orange ii; Acid Orange A;
  • CAS Registry Number:
  • Transport: 25kgs
  • Melting Point: 164 ºC
  • Water Solubility: 116 G/L (30 ºC)
  • Safety Statements: R36/37/38
  • Hazard Symbols: Xi: Irritant;
  • EINECS: 211-199-0
  • Molecular Weight: 350.324309
  • InchiKey: IGQFKZCLTLAWLO-HYNBPGMHSA-M
  • InChI: InChI=1S/C16H12N2O4S.Na/c19-15-10-5-11-3-1-2-4-14(11)16(15)18-17-12-6-8-
    13(9-7-12)23(20,21)22;/h1-10,17H,(H,20,21,22);/q;+1/p-1/b18-16+;
  • Risk Statements: S26;S37/39
  • Molecular Formula: C16H11N2NaO4S
  • Molecular Structure:CAS No:633-96-5 sodium

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633-96-5 Acid Orange 7

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633-96-5 ACID ORANGE 7

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References of sodium
Title: Orange II
CAS Registry Number: 633-96-5
CAS Name: 4-[(2-Hydroxy-1-naphthalenyl)azo]benzenesulfonic acid monosodium salt
Synonyms: C.I. Acid Orange 7; b-naphthol orange; D & C Orange No. 4; C.I. 15510
Trademarks: Mandarin G; Tropaeolin OOO no. 2
Molecular Formula: C16H11N2NaO4S
Molecular Weight: 350.32
Percent Composition: C 54.86%, H 3.16%, N 8.00%, Na 6.56%, O 18.27%, S 9.15%
Literature References: Anionic azo dye. Prepd by coupling b-naphthol, q.v., with diazotized sulfanilic acid, q.v., in alkaline soln, cf. Org. Synth. coll. vol. II, 36 (1943); Colour Index vol. 4 (3rd ed., 1971) p 4078. Review: H. J. Conn's Biological Stains, R. D. Lillie, Ed. (Williams & Wilkins, Baltimore, 9th ed., 1977) pp 112-113, 573.
Properties: Orange-brown powder. Indicator color transitions: amber to orange pH 7.4-8.6; orange to red pH 10.2-11.8. Soly (mg/ml): water 130 mg/ml; ethanol 4 mg/ml. Absorption max (water): 483 nm.
Absorption maximum: Absorption max (water): 483 nm
 
Derivative Type: Pentahydrate
Properties: Orange needles from water. One gram dissolves in 20 ml water. Sol in alc. Absorption max 484.4 nm.
Absorption maximum: Absorption max 484.4 nm
 
Use: Dye; biological stain; external colorant. Limited use as an indicator.