521-24-4

521-24-4 structure

Name	1,2-naphthoquinone-4-sulfonic acid sodium salt
Synonyms	Sodium 1,2-Naphthoquinone-4-sulfonate EINECS 208-308-9 MFCD00001700 Sodium 3,4-dioxo-3,4-dihydronaphthalene-1-sulfonate Folin's reagent Sodium 3,4-dioxo-3,4-dihydro-1-naphthalenesulfonate 1-Naphthalenesulfonic acid, 3,4-dihydro-3,4-dioxo-, sodium salt (1:1) 1,2-Naphthoquinone-4-sulfonic Acid Sodium Salt sodium,3,4-dioxonaphthalene-1-sulfonate

Melting Point	289 °C (dec.)(lit.)
Molecular Formula	C₁₀H₅NaO₅S
Molecular Weight	260.198
Exact Mass	259.975525
PSA	99.72000
LogP	1.41890
Storage condition	2-8°C
Stability	Stable. Incompatible with strong oxidizing agents.
Water Solubility	H2O: 50 mg/mL, clear

CHEMICAL NAME :: 1-Naphthalenesulfonic acid, 3,4-dihydro-3,4-dioxo-, sodium salt

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: AD691-490 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X7927 No. of Facilities: 25 (estimated) No. of Industries: 1 No. of Occupations: 1 No. of Employees: 1358 (estimated) No. of Female Employees: 956 (estimated)

Personal Protective Equipment	dust mask type N95 (US);Eyeshields;Gloves
Hazard Codes	Xi: Irritant;
Risk Phrases	R36/37/38
Safety Phrases	S26
RIDADR	NONH for all modes of transport
WGK Germany	3
RTECS	QK1490000
HS Code	2914399090

HS Code	2914399090
Summary	2914399090. other aromatic ketones without other oxygen function. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:5.5%. General tariff:30.0%