1.01408
Crystal violet (C.I. 42555)
pH indicator, ACS, Reag. Ph Eur
Synonym(s):
Crystal violet (C.I. 42555), Hexamethylenepararosaniline chloride, Gentian violet (C.I. 42555), Hexamethyl-p-rosanilinium, Methyl violet 10 B
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$128.00
$447.00
$3,200.00
About This Item
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Product Name
Crystal violet (C.I. 42555), indicator ACS,Reag. Ph Eur
grade
ACS reagent
Quality Level
Agency
reag. Ph. Eur.
form
solid
potency
420 mg/kg LD50, oral (Rat)
composition
dye content, ≥90% spectrophotometric assay (, calc. on dried substance)
impurities
<0.10% Michler′s ketone
loss
≤7.5% loss on drying, 110°C, 4 h
pH
2.5-3.5 (20 °C, 10 g/L in H2O)
mp
189-194 °C
solubility
10 g/L
density
1.19 g/cm3 at 20 °C
bulk density
220‑400 kg/m3
λmax
589-594 nm in water
absorbance ratio
0.98-1.20 (Ratio, E (lambdamax - 15 nm)/E (lambdamax + 15 nm))
storage temp.
2-30°C
SMILES string
[Cl-].N(C)(C)c1ccc(cc1)[C+](c3ccc(cc3)N(C)C)c2ccc(cc2)N(C)C
InChI
1S/C25H30N3.ClH/c1-26(2)22-13-7-19(8-14-22)25(20-9-15-23(16-10-20)27(3)4)21-11-17-24(18-12-21)28(5)6;/h7-18H,1-6H3;1H/q+1;/p-1
InChI key
ZXJXZNDDNMQXFV-UHFFFAOYSA-M
1 of 4
This Item | 1.04137 | 61135 | 46364 |
|---|---|---|---|
| grade ACS reagent | grade - | grade for microscopy (Bact., Bot., Hist., Vit.), indicator (pH 0.1-2.0) | grade analytical standard |
| agency reag. Ph. Eur. | agency - | agency - | agency - |
| form solid | form solid | form powder | form - |
| potency 420 mg/kg LD50, oral (Rat) | potency 420 mg/kg LD50, oral (Rat) | potency - | potency - |
| composition dye content, ≥90% spectrophotometric assay (calc. on dried substance) | composition Dye, ≥88% spectrophotometric assay | composition - | composition - |
| impurities <0.10% Michler′s ketone | impurities - | impurities - | impurities - |
Analysis Note
Identity (UV/VIS-Spectrum): passes test
Absorbance characteristics (Ratio,E (λmax - 15 nm)/E (λmax + 15 nm)): 0.98 - 1.20
Absorption maximum λmax. (water): 589 - 594 nm
Spec. Absorptivity A 1%/1cm (λmax; 0.002 g/l; water): 2000 - 2450
TLC-Test: passes test
Michler`s ketone: <0.10%
Loss on drying (110 °C, 4 h): ≤ 7.5%
Suitability as indicator (ACS): passes test
Suitability as indicator (Reag. Ph. Eur.): passes test
Signal Word
Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 2 - Eye Dam. 1
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Certificates of Analysis (COA)
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