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Trisodium 2-(4-Sulfophenylazo)-1,8-dihydroxynaphthalene-3,6-disulfonate Hydrate

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Formula: C16H9N2Na3O11S3
CAS: 23647-14-5
search Element: dihydroxynaphthalene sulfophenylazo disulfonate trisodium hydrate
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Identification

Structural Formula
Trisodium 2-(4-Sulfophenylazo)-1,8-dihydroxynaphthalene-3,6-disulfonate Hydrate
CAS:
23647-14-5
EINECS:
245-803-9
Molecular Formula:
C16H9N2Na3O11S3
MDL:
MFCD00003952
Synonym:
spadnsgr ; spadns solution ; spadns, reagent, acs ; 2,7-naphthalenedisulfonic ; spadns ; spadns extrapure ar ; sulfanilic acid azochromtrop ; sulfanilic acid azochromotrope ; sulfanilic acid-azochromotrop ; 2-(p-sulfophenylazo)chromotrop




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2-(4-Sulfophenylazo)1,8-dihydroxy-3,6-naphthalenedisulfonic Acid, Trisodium Salt, Indicator Grade
Acros Organics BVBA
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Properties for Trisodium 2-(4-Sulfophenylazo)-1,8-dihydroxynaphthalene-3,6-disulfonate Hydrate

Molecular Weight:
570.41 g·mol−1
Melting point:
>300 °C
Physical Description:
dark red-brown crystalline powder
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Hazard Statements

GHS07

GHS03
Harmful
  • Acute toxicity (oral, dermal, inhalation), category 4
  • Skin irritation, categories 2, 3
  • Eye irritation, category 2A
  • Skin sensitization, category 1
  • Specific target organ toxicity following single exposure, category 3
    - Respiratory tract irritation
    - Narcotic effects
    • Not used
  • with the "skull and crossbones" pictogram
  • for skin or eye irritation if:
  • the "corrosion" pictogram also appears
  • the "health hazard" pictogram is used to indicate respiratory sensitization

Safety & Transport Information

Risk Codes:
R36/37/38 - Irritating to eyes, respiratory system and skin
Safety Codes:
S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
S36 - Wear suitable protective clothing
Hazard Symbols:
Xi
Hazard symbol Xi
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Alternative Distributors of [Trisodium 2-(4-Sulfophenylazo)-1,8-dihydroxynaphthalene-3,6-disulfonate Hydrate]

Producers or manufacturers change the product range from time to time. The following companies
have appeared as suppliers in the past / currently not verified

Carl Roth GmbH + Co KG

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