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Rp362.800

Methyl Red, Practical Grade 25G (GRM3055-25G) - Himedia

Rp362.800
  • Kondisi: Baru
  • Min. Pemesanan: 1 Buah
  • Etalase: HIMEDIA
Methyl Red, Practical Grade 25G (GRM3055-25G) - Himedia
Methyl red is a dark red crystalline powder. Methyl red is a pH indicator; it is red in pH under 4.4, yellow in pH over 6.2, and orange in between, with a pKa of 5.1.

No. Cat. = GRM3055

PRODUCT IDENTIFIER
CAS No. : 493-52-7
EC No. : 207-776-1
C.I. No. : 13020
Molecular Formula : C₁₅H₁₅N₃O₂
Molecular Weight : 269.30
HS Code : 2927 00 90
Storage : Below 30°C

SPECIFICATION
Appearance : Dark red to maroon to purple crystals or powder
Solubility : 20 ppm in methanol yields clear solution
Visual pH Transition : pH 4.20 (pink) - pH 6.20 (yellow)
Absorption maxima : 427 - 437 nm (20 ppm in pH 6.20 buffer)
FTIR : Matches with the standard pattern
Loss on drying (at 110°C, 1 hr) : <= 5.00%

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