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2,7-Naphthalenedisulfonicacid, 4,5-dihydroxy-3-[2-(4-nitrophenyl)diazenyl]-, sodium salt (1:2)

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Formula: C16H9N3Na2O10S2
CAS: 548-80-1

Identification

Structural Formula
2,7-Naphthalenedisulfonicacid, 4,5-dihydroxy-3-[2-(4-nitrophenyl)diazenyl]-, sodium salt (1:2)
CAS:
548-80-1
EINECS:
208-959-9
Molecular Formula:
C16H9N3Na2O10S2
MDL:
MFCD00003951
Synonym:
acidred176(16575) ; ci no 16575 ; chromotrope2b,97% ; b,chromotrope ; chromotrope 2b ; ci 16575 ; acid red 176 ; chromotrope ; chromotrop 2 b ; c.i.acid red 176




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Properties for 2,7-Naphthalenedisulfonicacid, 4,5-dihydroxy-3-[2-(4-nitrophenyl)diazenyl]-, sodium salt (1:2)

Molecular Weight:
513.37 g·mol−1
Melting point:
300 °C
Physical Description:
dark green to dark purple 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 [2,7-Naphthalenedisulfonicacid, 4,5-dihydroxy-3-[2-(4-nitrophenyl)diazenyl]-, sodium salt (1:2)]

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

ABCR GmbH & Co. KG | Jinan Great Chemical Co., Ltd. | TCI Europe NV | Molekula GmbH | scienTEST | Aakash Chemicals & Dye-Stuffs, Inc.

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