溶解度 SolubilityPracticallyinsolubleinwater;solubleinethanol酸度系数(pKa)8.0,8.2,8.5(at25℃)形态Powder颜色Pinktobeigeorbrown气味(Odor)CharacteristicodourPH值pH:7.1～8.7酸碱指示剂变色ph值范围7.1(brownish)-8.3(blue/green)水溶解性 Solubleinethanol.Insolubleinwater.最大波长(λmax)648nmMerck 14,6389BRN ...
The formula of fixing liquid used in alpha-NBE staining is adjusted; on the basis of formaldehyde, ethanol, trehalose, sodium alginate and polyol, which can enhance the fixing effect and staining effect, are added; the harmful effect of formaldehyde is reduced, the preservation time of a ...
溶解度SolubilitySoluble in ethanol, acetic acid and acetone. Insoluble in water. 性状No data available 储藏条件 Storage conditions密封避光保存。 α-萘酚醌苯基甲烷(MSDS,145-50-6)(145-50-6)实验注意事项: 1.实验前需戴好防护眼镜,穿戴防护服和口罩,佩戴手套,避免与皮肤接触。
[1,1'-biphenyl]-2-ol, compound with 2-aminoethanol (1:1) CAS : 84145-04-0 分子量 : - 分子式 : - 货号: CWLT600921 分散橙 2RL Disperse Orange 37 CAS : 12223-33-5 分子量 : - 分子式 : - 货号: CWLT600919 颜料蓝15:2 Pigment Blue 15:2 CAS : 12239-87-1 分子量 :...
2. Cream was first extracted with a mixture of ethanol and light petroleum; the extract was either used directly for colorimetric estimation or the solvents were evaporated and the estimation was made on the recovered fat.-G. A. Garton.
Liquid carriers are methanol, ethanol, ketones e.g. acetone or methyl ethyl ketone or liquid hydrocarbons. The compositions may also contain emulsifiers e.g. benzyl hydroxy diphenyl polyglycol ether. Specification 901,551 is referred to.GERHARD SCHRADERHANSHELMUT SCHLOER...
The crude reaction mixture was purified first by chromatography (silica gel, eluent n-hexane/ethyl acetate 4:1), followed by crystallization (ethanol) to obtain the product. (S,S) and (R,R)-methyl ((2-hydroxynaphthalen-1-yl)(phenyl)methyl)-d-valinate (MMZ-33D) Colorless solid. Yield ...