1.06076
Methyl red (C.I. 13020)
pH indicator, ACS, Reag. Ph Eur
別名:
Methyl red (C.I. 13020), 4-Dimethylaminoazobenzene-2′-carboxylic acid
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この商品について
実験式（ヒル表記法）:
C15H15N3O2
CAS番号:
分子量:
269.30
UNSPSC Code:
12352107
EC Index Number:
207-776-1
NACRES:
NA.05
MDL number:
製品名
Methyl red (C.I. 13020), indicator ACS,Reag. Ph Eur
grade
ACS reagent
Quality Segment
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
SMILES string
N(C)(C)c1ccc(cc1)N=Nc2c(cccc2)C(=O)O
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
Analysis Note
Identity (UV/VIS-Spectrum): passes test
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 %
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 %
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保管分類
11 - Combustible Solids
flash_point_f
Not applicable
flash_point_c
Not applicable