Metanil yellow

MDL：
--MFCD00007486

Molecular Formula：
C18H14N3NaO3S

Molecular Weight：
375.38

Product order：

Name	Specifications	Packing	Price	Delivery
Metanil yellow	高纯级	25g	RMB 382.8	Consulting service
Metanil yellow	AR	100g	RMB 151.8	Consulting service
Metanil yellow	AR	25g	RMB 52.8	Consulting service
Metanil yellow	AR	5g	RMB 30.8	Consulting service

Character：
溶于水,溶于醇,中度溶于苯和醚,微溶于丙酮,指示剂范围pH 1.2-2.3

Quality Standard：
   
   项目                                    分析纯    
                                        (AR)
外观Appearance                          橙色粉末
红外光谱鉴别Infrared spectrometry       和对照品匹配
染料含量Dye-content                     >80 %
λ max.                                  415.0 - 419.0 nm(甲醇)
吸光度Absorbance(E1%1cm)                ≥ 650(Methanol, 415.0 - 419.0 nm)

项目                                    高纯级    
外观Appearance                          橙色粉末
红外光谱鉴别Infrared spectrometry       和对照品匹配
纯度Purity                              ≥98.0% (TLC)  
干燥损失Loss on drying                  <10 % (105°C)
λ max                                   431 - 436 nm (水)
吸光率Absorpt. Ratio P-15/P+15          0.9 - 1.1
吸光度Specific abs. A (1%/1cm)          >550 (λ max.)

Storage：
密封阴凉干燥保存。