供应(-)-乳酸乙酯
(-)-乳酸乙酯        规格:  ≥99.0%        产地:  比利时/德          包装:  200kg/桶      价格:15800元/吨  

Cas号:687-47-8        MDL:    --MFCD00004518  

Beilstein    1720839    EINECS:  211-694-1

分子式C5H10O3  

分子量  1118.13

别名乳酸乙酯;α-羟基丙酸乙酯;α-羟基初油酸乙酯;乳酸乙酯;L(S)-2-羟基丙酸乙酯;2-羟基丙酸乙酯;

(-)Ethyl  (s)-2-hydroxypropionate

(s)-(-)-2-HydroxypropionaIC  acid  ethyl  ester

L-Lactic  acid  etyl  ester

分子结构式    

货号：1103990        1103991    1103992      1128928      1128930      1128931      1136619

性状    无色至微黄色液体，易溶于醇、醚、酮类、酯类、油类。与水混溶并部分分解。

密度：1.034

沸点：154℃

折光率n20/D：1.413

闪点：46℃

熔点：-26℃    

质量标准      

98%

外观Appearance                                                  无色至微黄色透明液体

纯度Purity　　　　　                                      ≥98.0%（GC）

相对密度Specific  gravity（20/20℃）          1.030  -  1.0380

折光率R  efractive  index  n20/D                    1.4120  -  1.4140

比旋度Specific  rotation  『a』20/D            -8°    -    12°（neat）

  

99%

外观Appearance                                                  无色至微黄色透明液体

纯度Purity　　　　　                                      ≥99.0%（GC）

相对密度Specific  gravity（20/20℃）          1.030  -  1.0380

折光率R  efractive  index  n20/D                    1.4120  -  1.4140

比旋度Specific  rotation  『a』20/D            -8°    -    12°（neat）

酸度Acidity                                                        <0.08%（ac  lactic  acid）

非挥发性物质Non-volatile  matter                <0.01%

乙醇EtOH                                                              ≤0.1%

  

项目                                                                      光致抗蚀剂级

                                                                            （photoresist  grade）

含量assay                                                            ≥99.00%（Sum  of  enantiomers,GC）

光学活性opticad                                                -9.5―11.5    ,    neat

游离酸free  acid                                                ≤0.025%  

水分water                                                            ≤0.1%                    

蒸发残渣evapn.  residue                                  ≤0.01%

Ca：                                                                      ≤0.01  ppm

Cr：                                                                      ≤0.01  ppm    

Cu：                                                                      ≤0.01  ppm          

Fe：                                                                      ≤0.01  ppm

K：                                                                        ≤0.01  ppm  

Mg：                                                                      ≤0.01  ppm

Mn：                                                                      ≤0.01  ppm

Na：                                                                      ≤0.01  ppm

Ni：                                                                      ≤0.01  ppm

Pb：                                                                      ≤0.01  ppm

贮存  

用途    用作食品加香剂、酒类调味剂、医药中间体

联合国编号  1192  

Risk：    R10    R37    R41        

Safety  :    S24    S26    S39

Hazard  :  Xi