Merck 101369 0025 Neutral Red (C.i. 50040) indicator And For Microbiology 25 GR.

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Stok kodu: 101369 Kategoriler: Kimyasallar, Merck Milipore

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Description
Catalogue Number	101369

Product Information
CAS number	553-24-2
EC number	209-035-8
Hill Formula	C₁₅H₁₇ClN₄
Molar Mass	288.78 g/mol
HS Code	3212 90 00
Structure formula Image
Quality Level	MQ200

Physicochemical Information
Melting Point	290 °C
pH value	3.1 (10 g/l, H₂O, 20 °C)
Bulk density	350 – 500 kg/m3
Solubility	50 g/l

Safety Information according to GHS
Storage class	10 – 13 Other liquids and solids
WGK	WGK 3 highly hazardous to water
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.

Storage and Shipping Information
Storage	Store at +2°C to +30°C.

Specifications
Dye content (spectrophotometrically)	≥ 75 %
Identity (UV/VIS-Spectrum)	passes test
Transition range	pH 6.8 – pH 8.0 Violet red – orange yellow
Absorption maximum λ_max. (ethanol 50 %)	540 – 543 nm
Absorption maximum λ 1 (buffer pH 6.8)	514 – 519 nm
Absorption maximum λ 2 (buffer pH 8.0)	452 – 455 nm
Spec. Absorptivity A 1%/1cm (λ_max; 0.005 g/l; ethanol 50 %)	1180 – 1610
Spec. Absorptivity A 1%/1cm (λ1_max; 0.015 g/l; buffer pH 6.8; calc. on dried substances)	425 – 575
Spec. Absorptivity A 1%/1cm (λ2_max; 0.015 g/l; buffer pH 8.0; calc. on dried substances)	395 – 535
TLC-Test	passes test
Loss on drying (110 °C)	≤ 18 %
Suitability for microbiology	passes test