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2-(4-Sulfophenylazo)-1,8-dihydroxy-3,6-naphthalenedisulfonic acid trisodium salt

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Formula: C16H9N2Na3O11S3
CAS: 23647-14-5
search Element: naphthalenedisulfonic sulfophenylazo dihydroxy trisodium acid salt
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Identification

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




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Properties for 2-(4-Sulfophenylazo)-1,8-dihydroxy-3,6-naphthalenedisulfonic acid trisodium salt

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 [2-(4-Sulfophenylazo)-1,8-dihydroxy-3,6-naphthalenedisulfonic acid trisodium salt]

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

Spectrum Chemical Mfg. Corp. | Molekula GmbH | Pfaltz & Bauer, Inc.

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MSDS:
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