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1668-00-4

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Identification

Name
ARSENAZO III SODIUM SALT
CAS
1668-00-4
Synonyms
NSC 91528
Arsenazo Ⅲ
Neothorine
ArzenazoⅢ
Arsenazo-lll
Arsenazo III,95%
Arsenazo III ,99%
Arsenazo III ,78%
ARSENAZO III, REAG.
Arsenazo II, Free Acid
Arsenazo III Beckman®
ARSENAZO III SODIUM SALT
ArsenazoIIImetalindicator
Arsenazo III free acid p.a.
Arsenazo III≥ 96% (Titration)
ARSENAZO III METAL INDICATOR 5 G
ARSENAZO III FREE ACID HIGH GRADE
Bis-2,7-(2-arsenophenylazo)chroMatropic acid
2,7-Bis(2-arsonophenylazo)-1,8-dihydroxy-3,6-naphthalenedisulfonic acid
3,6-Bis(2-arsonophenylazo)-4,5-dihydroxy-2,7-naphthalenedisulfonic acid
3,6-Bis(2-arsonophenylazo)-4,5-dihydroxynaphthalene-2,7-disulfonic acid
7-Naphthalenedisulfonicacid,3,6-bis[(2-arsonophenyl)azo]-4,5-dihydroxy-2
2,7-Naphthalenedisulfonicacid,3,6-bis[(2-arsonophenyl)azo]-4,5-dihydroxy-
2,7-(bis(2-arsonophenylazo))-1,8-dihydroxynaphthalene-3,6-disulphonic acid
2,7-bis(2-Arsonophenylazo)-1,8-dihydroxynaphthalene-3,6-disulfonicacid,sodiumsalt
3,6-bis((E)-(2-arsonophenyl)diazenyl)-4,5-dihydroxynaphthalene-2,7-disulfonic acid
[(1,8-Dihydroxy-3,6-disulfo-2,7-naphthalenediyl)bisazobis(2,1-phenylene)]bisarsonic acid
2,2'-(1,8-DIHYDROXY-3,6-DISULFO-2,7-NAPHTHALENE-BIS(AZO))DIBENZENEARSONIC ACID SODIUM SALT
Arsenazo III [Spectrophotometric reagent for U, Th, Zr and other metals, Indicator for the precipitation titration of SO4 with Ba]
2,7-Bis(2-arsonophenylazo)chromotropic acid, Arsenazo III Beckman(R), 2,2μ-(1,8-Dihydroxy-3,6-disulfonaphthylene-2,7-bisazo)bisbenzenearsonic acid
EINECS(EC#)
216-788-6
Molecular Formula
C22H18As2N4O14S2
MDL Number
MFCD00078931
Molecular Weight
776.37
MOL File
1668-00-4.mol

Chemical Properties

Melting point 
>320 °C(lit.)

storage temp. 
Store at RT.
solubility 
ammonium hydroxide: soluble1mg/mL
form 
Powder
color 
Brown
PH
2.3 (10g/l, H2O, 20℃)

Hazard Information

Chemical Properties
Dark brown solid
Uses
Spectrophotometric reagent for U, Th, Zr and other metals.Indicator for the precipitation titration of SO4 with Ba.
Uses
Usually used in the determination of calcium in serum,has been used to evaluate calcium transport in permeabilized cells,has also been used for the spectrophotometric determination of uranium and thorium.

Safety Data

Hazard Codes 
T,N
Risk Statements 
23/25-50/53
Safety Statements 
20/21-28-45-60-61
RIDADR 
UN 3465 6.1/PG 2

WGK Germany 
3

HazardClass 
6.1(b)
PackingGroup 
III
HS Code 
29319090

Raw materials And Preparation Products

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