1.06076
Methyl red (C.I. 13020)
pH indicator, ACS, Reag. Ph Eur
Sinónimos:
Methyl red (C.I. 13020), 4-Dimethylaminoazobenzene-2′-carboxylic acid
About This Item
Productos recomendados
product name
Methyl red (C.I. 13020), indicator ACS,Reag. Ph Eur
grade
ACS reagent
Quality Level
agency
reag. Ph. Eur.
suitable for SM 4500 - NH3
form
powder
solid
loss
≤5% loss on drying, 110°C
color
red to red-violet
visual transition interval
4.4-6.0, red to yellow
mp
178-182 °C
bulk density
300‑500 kg/m3
Amax
427-437 nm (buffer pH 6.2)
523-526 nm (buffer pH 4.5)
storage temp.
2-30°C
InChI
1S/C15H15N3O2/c1-18(2)12-9-7-11(8-10-12)16-17-14-6-4-3-5-13(14)15(19)20/h3-10H,1-2H3,(H,19,20)
InChI key
CEQFOVLGLXCDCX-UHFFFAOYSA-N
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Analysis Note
Appearance: Red to red-violet powder, eventually with granular parts.
Clarity of solution (1 g/l; ethanol): passes test
Melting point (capillary method, temperatur measerment in the heating block): 179 - 182 °C
Transition range: pH 4.4 - pH 6.0 Red - yellow
Absorption maximum (buffer pH 4.5): 523 - 526 nm
Absorption maximum (buffer pH 6.2): 427 - 437 nm
Spec. Absorptivity A 1%/1cm (λmax; 0.005 g/l; buffer pH 4.5; calculated on anhydrous substance): 1350 - 1500
Spec. Absorptivity A 1%/1cm (λmax; 0.005 g/l; buffer pH 6.2; calculated on anhydrous substance): 700 - 800
Transition range (according to ACS): passes test
Loss on drying (110 °C): ≤ 5 %
Storage Class
11 - Combustible Solids
wgk_germany
WGK 2
flash_point_f
Not applicable
flash_point_c
Not applicable
Certificados de análisis (COA)
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This page is intended to make it easier to find the consumables you need based on the analytical method you’re using. Methods included on this page come from the EPA, Standard Methods and ASTM.
This page is intended to make it easier to find the consumables you need based on the analytical method you’re using. Methods included on this page come from the EPA, Standard Methods and ASTM.
This page is intended to make it easier to find the consumables you need based on the analytical method you’re using. Methods included on this page come from the EPA, Standard Methods and ASTM.
This page is intended to make it easier to find the consumables you need based on the analytical method you’re using. Methods included on this page come from the EPA, Standard Methods and ASTM.
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