甲基红, AnalaR NORMAPUR® ACS, Reag. Ph. Eur. C.I. 13020

供应商: VWR Chemicals

Synonyms: 2-[[4-(二甲基氨基)苯基]偶氮基]苯甲酸, 4-二甲氨基偶氮苯-2′-羧酸, 酸性红 2

VWRC86159.150EA 1395 CNY
VWRC86159.150 VWRC86159.180
甲基红, AnalaR NORMAPUR® ACS, Reag. Ph. Eur. C.I. 13020
甲基红
分子式: C₁₅H₁₅N₃O₂
分子量: 269.3 g/mol
MDL编号: MFCD00002425
CAS号: 493-52-7
Merck Index: 12,06199

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产品技术规格

pH range (red-violet to brownish-yellow) 4,5 - 6,2
Absorption maximum λ1 (pH 4,5) 523 - 526 nm
Absorption maximum λ2 (pH 6,2) 427 - 437 nm
Absorptivity (A1%/1 cm; λ1; pH 4,5 on dried sample) 1380 - 1480
Absorptivity (A1%/1 cm; λ2; pH 6,2 on dried sample) 700 - 800
Transition range acc. ACS Passes test
Loss on drying (110 ºC) ≤ 5%


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