2-(O-ARSONOPHENYLAZO)-1,8-DIHYDROXYNAPHTHALENEDISULFONIC ACID, SODIUM SALT

Name	Arsenazo I
Synonyms	ARSENAZO Arsenazo Neothovin Neothorin Neothoron Arsenazo I ARSENAZO 1 ARSENAZO I 2-(2-ARSONOPHENYLAZO)CHROMOTROPIC ACID DISODIUM SALT O-(1,8-DIHYDROXY-3,6-DISULFO-2-NAPHTHYLAZO)BENZENEARSONIC ACID SODIUM SALT 2-(O-ARSONOPHENYLAZO)-1,8-DIHYDROXYNAPHTHALENEDISULFONIC ACID, SODIUM SALT 2-(1,8-DIHYDROXY-3,6-DISULFO-2-NAPHTHYLAZO)PHENYLARSONIC ACID DISODIUM SALT 2-(1,8-DIHYDROXY-3,6-DISULFO-2-NAPHTHYLAZO)BENZENEARSONIC ACID TRISODIUM SALT (3E)-3-[(2-arsonophenyl)hydrazono]-5-hydroxy-4-oxo-3,4-dihydronaphthalene-2,7-disulfonic acid
CAS	520-10-5
EINECS	208-285-5
InChI	InChI=1/C16H13AsN2O11S2/c20-12-7-9(31(25,26)27)5-8-6-13(32(28,29)30)15(16(21)14(8)12)19-18-11-4-2-1-3-10(11)17(22,23)24/h1-7,20-21H,(H2,22,23,24)(H,25,26,27)(H,28,29,30)/b19-18+

Molecular Formula	C16H13AsN2O11S2
Molar Mass	548.33
Melting Point	≥300°C(lit.)
Solubility	methanol: 1mg/mL, clear, red
Appearance	Dark red powder.
pKa	-0.71±0.40(Predicted)
Storage Condition	Room Temprature
Sensitive	Sensitive to light
MDL	MFCD00066725
Use	Sensitive reagent for Colorimetric Determination of uranium, thorium and rare earth elements

Risk Codes	R23/25 - Toxic by inhalation and if swallowed. R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
Safety Description	S20/21 - S28 - After contact with skin, wash immediately with plenty of soap-suds. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S60 - This material and its container must be disposed of as hazardous waste. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets.
UN IDs	UN 3465 6.1/PG 3
WGK Germany	3
Hazard Class	6.1(b)
Packing Group	III

use	as a sensitive reagent for colorimetric determination of uranium, thorium and rare earth elements

Last Update：2024-04-09 21:04:16

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CAS: 520-10-5
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Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409

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2-(O-ARSONOPHENYLAZO)-1,8-DIHYDROXYNAPHTHALENEDISULFONIC ACID, SODIUM SALT Request for Quotation