1.07297
Phthalein purple
metal indicator, Reag. Ph Eur
Synonym(s):
Phthalein purple, Xylenolphthalein-bis(iminodiacetic acid), Metal phthaleine, Cresol phthalexone
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About This Item
Product Name
Phthalein purple, metal indicator Reag. Ph Eur
SMILES string
[Na+].[Na+].[Na+].[Na+].N(Cc1c(c(cc(c1)C3(OC(=O)c4c3cccc4)c2cc(c(c(c2)C)O)CN(CC(=O)[O-])CC(=O)[O-])C)O)(CC(=O)[O-])CC(=O)[O-]
InChI
1S/C32H32N2O12.4Na/c1-17-7-21(9-19(29(17)43)11-33(13-25(35)36)14-26(37)38)32(24-6-4-3-5-23(24)31(45)46-32)22-8-18(2)30(44)20(10-22)12-34(15-27(39)40)16-28(41)42;;;;/h3-10,43-44H,11-16H2,1-2H3,(H,35,36)(H,37,38)(H,39,40)(H,41,42);;;;/q;4*+1/p-4
InChI key
KSMPPVYJZJBIES-UHFFFAOYSA-J
agency
reag. Ph. Eur.
form
solid
impurities
≤10% Water (Karl Fischer)
mp
186 °C
bulk density
50 kg/m3
λmax
577-580 nm in 0.1 M NaOH
storage temp.
2-30°C
Quality Level
Related Categories
Analysis Note
Absorption maximum λmax.(Sodium hydroxide solution 0.1 mol/l): 577 - 580 nm
Spec. Absorptivity A 1%/1cm (λmax; 0.005 g/l;sodium hydroxide solution 0.1 mol/l;calc. on anhydrous substance): ≥ 750
Water (according to Karl Fischer): ≤ 10 %
Suitability as indicator (for metal titration): passes test
Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
Certificates of Analysis (COA)
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