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Chemical Properties

CAS Registry Number: 3761-53-3

Selected information from two of the National Library of Medicine's databases: ChemIDPlus2 and HSDB3.

Names 1

  • C.I. Acid Red 26, Disodium Salt (8ci)

Structure

Chemical Structure for Chemical Abstracts Service Registry Number 3761-53-3 from NLM

Synonyms (Sources: NTP,HSDB,RTECS,MESH)2

  • 1-(2,4-Xylylazo)-2-naphthol-3,6-disulphonic acid, disodium salt
  • 1-Xylylazo-2-naphthol-3,6-disulfonic acid, disodium salt
  • 1-Xylylazo-2-naphthol-3,6-disulphonic acid, disodium salt
  • 1695 Red
  • 2,7-Naphthalenedisulfonic acid, 4-((2,4-dimethylphenyl)azo)-3-hydroxy-, disodium salt
  • 3-Hydroxy-4-(2,4-xylylazo)-2,7-naphthalenedisulphonic acid, disodium salt
  • 4-((2,4-Dimethylphenyl)azo)-3-hydroxy-2,7-naphthalenedisulphonic acid, disodium salt
  • Acetacid Red J
  • Acid Leather Red KPR
  • Acid Leather Red P2R
  • Acid Leather Scarlet IRW
  • Acid Ponceau 2RL
  • Acid Ponceau R
  • Acid Ponceau Special
  • Acid Red 26
  • Acid Scarlet
  • Acid Scarlet 2B
  • Acid Scarlet 2BN
  • Acid Scarlet 2R
  • Acid Scarlet 2R FOR Lakes Bluish
  • Acid Scarlet 2R For Lakes
  • Acid Scarlet 2RL
  • Acid Scarlet 2RN
  • Acidal Ponceau G
  • Acilan Ponceau RRL
  • Ahcocid Fast Scarlet R
  • Aizen Ponceau RH
  • Amacid Lake Scarlet 2R
  • Amacid Scarlet 2R
  • Brilliant Ponceau G
  • C.I. 16150
  • C.I. 79
  • C.I. Acid Red 26
  • C.I. Acid Red 26, disodium salt
  • C.I. Food Red 5
  • CI 16150
  • CI F Food Red 5
  • Calcocid 2RIL
  • Calcocid Scarlet 2R
  • Calcocid Scarlet 2RIL
  • Calcolake Scarlet 2R
  • Certicol Ponceau MXS
  • Cerven kysela 26 [Czech]
  • Cerven potravinarska 5 [Czech]
  • Colacid Ponceau Special
  • Comacid Scarlet 2R
  • D and C Red No. 5
  • Disodium (2,4-dimethylphenylazo)-2-hydroxynaphthalene-3,6-disulfonate
  • Disodium (2,4-dimethylphenylazo)-2-hydroxynaphthalene-3,6-disulphonate
  • Disodium salt of 1-(2,4-xylylazo)-2-naphthol-3,6-disulfonic acid
  • Disodium salt of 1-(2,4-xylylazo)-2-naphthol-3,6-disulphonic acid
  • Edicol Ponceau RS
  • Edicol Supra Ponceau R
  • Fenazo Scarlet 2R
  • Food Red No. 101
  • HSDB 2947
  • Hexacol Ponceau 2R
  • Hexacol Ponceau MX
  • Hidacid Scarlet 2R
  • Hispacid Ponceau R
  • Java Ponceau 2R
  • Kiton Ponceau 2R
  • Kiton Ponceau R
  • Kiton Scarlet 2RC
  • Lake Ponceau
  • Lake Scarlet 2RBN
  • Lake Scarlet R
  • NSC 10458
  • Naphthalene Lake Scarlet R
  • Naphthalene Scarlet R
  • Naphthazine Scarlet 2R
  • Neklacid Red RR
  • New Ponceau 4R
  • Paper Red HRR
  • Pas kwasowy 2 RL [Polish]
  • Pigment Ponceau R
  • Ponceau 2R
  • Ponceau 2R (biological stain)
  • Ponceau 2R Extra A Export
  • Ponceau 2RE
  • Ponceau 2RL
  • Ponceau 2RX
  • Ponceau BNA
  • Ponceau FR
  • Ponceau G
  • Ponceau GR
  • Ponceau J
  • Ponceau MX
  • Ponceau NR
  • Ponceau PXM
  • Ponceau R
  • Ponceau R (biological stain)
  • Ponceau RG
  • Ponceau RR
  • Ponceau RR Type 8019
  • Ponceau RS
  • Ponceau Red
  • Ponceau Red R
  • Ponceau de xylidine
  • Ponceau xylidine (biological stain)
  • Ponceaux 3R
  • Red 101
  • Red For Lakes J
  • Red No. 503
  • Red R
  • Scarlet 2R
  • Scarlet 2RB
  • Scarlet 2RL
  • Scarlet 2RL bluish
  • Scarlet R
  • Scarlet R (VAN)
  • Scarlet RRA
  • Schultz No. 95
  • Tertracid Ponceau 2R
  • Tetracid Ponceau 2R
  • Xylidine Ponceau
  • Xylidine Ponceau 3RS
  • Xylidine Red

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Other Registry Numbers2

  • 64553-71-5

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Chemical Properties3

Property Description
Boiling Point
  • None Found
Color/Form
  • DARK-RED CRYSTALS
Corrosivity
  • None Found
Critical Temperature & Pressure
  • None Found
Density/Specific Gravity
  • None Found
Dissociation Constants
  • None Found
Heat Of Combustion
  • None Found
Heat Of Vaporization
  • None Found
Melting Point
  • None Found
Molecular Weight
  • 482.4 **PEER REVIEWED**
Odor
  • None Found
Other Chemical/Physical Properties
  • None Found
Relative Evaporation Rate
  • None Found
Solubilities
  • VERY SLIGHTLY SOL IN ETHER, ETHANOL & ACETONE; INSOLUBLE IN OIL, SOL IN WATER
Spectral Properties
  • MAX ABSORPTION (0.02 N AMMONIUM ACETATE): 506 NM
Surface Tension
  • None Found
Taste
  • None Found
Vapor Density
  • None Found
Vapor Pressure
  • None Found
Viscosity
  • None Found
log P (octanol-water)
  • None Found
pH
  • None Found

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Uses3

  • DYE USED MAINLY IN TEXTILES AND LEATHER; DYE USED IN INKS, PAPER, PIGMENT, & WOOD STAINS **PEER REVIEWED**
  • FOOD & DRUG COLORANTS **PEER REVIEWED**

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Notes (Sources: NTP,HSDB,RTECS,MESH)2

  • None Found.

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Superlist Classes2

  • Overall Carcinogenic Evaluation: Group 2B

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Links to Additional Information2

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Footnotes

1 Source: the NTP's CEBS database.

2 Source: the National Library of Medicine's ChemIDPlus, 02/28/2017.

3 Source: the National Library of Medicine's Hazardous Substance Database, 02/28/2017.

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