SPADNS

Modify Date: 2025-08-22 18:33:40

Name	spadns
Synonym	More Synonyms

Melting Point	>300ºC
Molecular Formula	C₁₆H₉N₂Na₃O₁₁S₃
Molecular Weight	570.41400
Exact Mass	569.90600
PSA	261.92000
LogP	4.62110
InChIKey	AEHGQXKBQBMQEK-UHFFFAOYSA-K
SMILES	O=S(=O)([O-])c1ccc(N=Nc2c(S(=O)(=O)[O-])cc3cc(S(=O)(=O)[O-])cc(O)c3c2O)cc1.[Na+].[Na+].[Na+]
Storage condition	Store at +15°C to +25°C.
Water Solubility	220g/l

SPADNS MSDS(Chinese)

Symbol	GHS07
Signal Word	Warning
Hazard Statements	H315-H319-H335
Precautionary Statements	P261-P305 + P351 + P338
Personal Protective Equipment	dust mask type N95 (US);Eyeshields;Gloves
Hazard Codes	Xi: Irritant;
Risk Phrases	R36/37/38
Safety Phrases	S24/25
RIDADR	NONH for all modes of transport
WGK Germany	3

Trisodium 1,8-Dihydroxy-2-(4-sulfophenylazo)naphthalene-3,6-disulfonate Hydrate

SULFANILIC ACID AZOCHROMOTROPE

SpadnsGr

4,5-Dihydroxy-3-(4-sulfophenylazo)-2,7-naphthalenedisulfonic Acid Trisodium Salt Hydrate

1,8-Dihydroxy-2-(4-sulfophenylazo)naphthalene-3,6-disulfonic Acid Trisodium Salt Hydrate

EINECS 245-803-9

Sulfanilic acid azochromtrop

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

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

Sulfanilic acid azochromotrop

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

2,7-naphthalenedisulfonic

SULFANILIC ACID-AZOCHROMOTROP

MFCD00003952

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Names