MDL：
--MFCD00002426

Molecular Formula：
C15H14N3NaO2

Molecular Weight：
291.28

Alias：
酸性紅2 4-Dimethylaminoazobenzene-2′-carboxylic acid sodium salt Acid Red 2

Product order：

Name	Specifications	Packing	Price	Delivery
Methyl Red sodium salt	ACS reagent, 95 %	100g	RMB 624.8	現(xiàn)貨
Methyl Red sodium salt	ACS reagent, 95 %	25g	RMB 147.4	促銷
Methyl Red sodium salt	IND	500g	RMB 1097.8	現(xiàn)貨
Methyl Red sodium salt	IND	100g	RMB 360.8	現(xiàn)貨
Methyl Red sodium salt	IND	25g	RMB 94.6	促銷

Character：
橙紅色結(jié)晶性粉末。溶于水和乙醇。最大吸收波長437nm。

Quality Standard：
   
   品級Grade                               指示劑級（IND)  
                                    (indicator (pH 4.2-6.2))
外觀Appearance                          紅棕色粉末
紅外光譜鑒別Infrared spectrometry       Conforms
水溶解試驗solubility in water           clear(0.1% in water)
pH變色域visual transition interval      pH 4.2 (red) to pH 6.2 (yellow)

品級Grade                                ACS級  
                                     (ACS reagent, 95 %)
外觀Appearance                          紅棕色粉末
紅外光譜鑒別Infrared spectrometry       Conforms
染料含量Dye content,                    95%  
水溶解試驗solubility in water           clear(0.1% in water)
pH變色域visual transition interval      pH 4.2 (red) to pH 6.2 (yellow)
λ                                       430 - 440 nm
                                        c = 0.01 g/l; Water
消光系數(shù)Extinction Coefficient          ≥17000
λ                                       256 - 260 nm
消光系數(shù)Extinction Coefficient          ≥8000
Visual Transition Interval              pH 4.2  Pink
Visual Transition Interval              pH 5.5  Orange
Visual Transition Interval              pH 6.2  Yellow
pH變色域visual transition interval      pH 4.2 (red) to pH 6.2 (yellow)

Storage：
密封陰涼干燥避光保存。
用途  酸堿指示劑，pH變色范圍4.4(紅)～6.2(黃)。氧化還原指示劑。用于硫酸鈰滴定亞鐵離子