Product Information
CAS number	493-52-7
EC number	207-776-1
Grade	ACS,Reag. Ph Eur
Hill Formula	C₁₅H₁₅N₃O₂
Molar Mass	269.31 g/mol
HS Code	2927 00 00
Structure formula Image

Applications
Application	Methyl red (C.I. 13020) indicator ACS,Reag. Ph Eur. CAS 493-52-7, molar mass 269.31 g/mol.

Physicochemical Information
Melting Point	178 - 182 °C
Bulk density	300 - 500 kg/m3

Safety Information according to GHS
Storage class	10 - 13 Other liquids and solids
WGK	WGK 2 water endangering
Disposal	3 Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.

Safety Information
Hazard Symbols	Dangerous for the environment
Categories of danger	dangerous for the environment
R Phrase	R 51/53 Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
S Phrase	S 61 Avoid release to the environment. Refer to special instructions/ Safety data sheets.

Storage and Shipping Information
Storage	Store at +5°C to +30°C.

Transport Information
Declaration (railroad and road) ADR, RID	Kein Gefahrgut
Declaration (transport by air) IATA-DGR	No Dangerous Good
Declaration (transport by sea) IMDG-Code	No Dangerous Good

Specifications
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 %

Taksit Seçenekleri

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MERCK 106076 Methyl red (C.I. 13020) indicator ACS,Reag. Ph Eur. CAS 493-52-7, molar mass 269.31 g/mol

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