产品名称

英文名称：DL-Lactide

同义词

3,6-Dimethyl-1,4-dioxane-2,5-dione、DL-Lactide、95-96-5、LACTIDE、Dilactide、1,4-Dioxane-2,5-dione, 3,6-dimethyl-、3,6-Dimethyl-2,5-dioxo-1,4-dioxane、DL-Dilactide、p-Dioxane-2,5-dione, 3,6-dimethyl-、Lactic acid, bimol. cyclic ester、26680-10-4、rac-lactide、UNII-7E、丙交酯、3,6-二甲基-1,4-二氧六环-2,5-二酮

产品性质

CAS编号：95-96-5

分子式：C6H8O4

分子量：144.13

Beilstein号：19(3/4)1927

EC号：202-468-3

MDL号：MFCD00011685

PubChem编号：7272

别名：丙交酯|3,6-二甲基-1,4-二氧六环-2,5-二酮

英文别名：3,6-Dimethyl-1,4-dioxane-2,5-dione|DL-Lactide|95-96-5|LACTIDE|Dilactide|1,4-Dioxane-2,5-dione, 3,6-dimethyl-|3,6-Dimethyl-2,5-dioxo-1,4-dioxane|DL-Dilactide|p-Dioxane-2,5-dione, 3,6-dimethyl-|Lactic acid, bimol. cyclic ester|26680-10-4|rac-lactide|UNII-7E

规格或纯度：>98.0%(T)

英文名称：DL-Lactide

储存温度：-20°C储存,充氩

运输条件：超低温冰袋运输

产品介绍：3,6-二甲基-1,4-二恶烷-2,5-二酮（或 rac-丙交酯），是D和L-丙交酯5050的外消旋混合物。rac-丙交酯是一种衍生自乳酸的内酯，因其源自丰富的可再生资源而引起了学术界和商业应用的极大兴趣。通过使用各种金属或有机催化剂，rac-丙交酯可以通过开环聚合进行聚合，从而得到聚（D，L-丙交酯）。虽然所得聚合物通常是无定形的，但立体定向催化剂的使用可生成异顺性PLA，其表现出一定程度的结晶度。3,6-Dimethyl-1,4-dioxane-2,5-dione (or rac-lactide), is the 5050 racemic mixture of D- and L-Lactide. Rac-lactide is a lactone derived from lactic acid that has attracted great interest in academia and commercial applications, as it is derived from abundant renewable resources. Rac-lactide can be ready polymerized via ring-opening polymerization, using a variety of metal or organocatalysts, yielding poly(D,L-lactide). While the resulting polymer is generally amorphous, the use of stereospecific catalysts can lead to heterotactic PLA, which exhibits some degree of crystallinity.ApplicationDL-Lactide is used to produce 2-hydroxy-propionic acid 1-(1-phenyl-ethoxycarbonyl)-ethyl ester. It acts as an important raw material and an intermediate used in organic synthesis, pharmaceuticals, agrochemicals and dyes. It is involved in enzymatic alcoholysis to produce both alkyl (R)-lactates and alkyl (S,S)-lactyllactates.

IUPAC Name：3,6-dimethyl-1,4-dioxane-2,5-dione

INCHI：InChI=1S/C6H8O4/c1-3-5(7)10-4(2)6(8)9-3/h3-4H,1-2H3

InChi Key：JJTUDXZGHPGLLC-UHFFFAOYSA-N

Canonical SMILES：CC1C(=O)OC(C(=O)O1)C

Isomeric SMILES：CC1C(=O)OC(C(=O)O1)C

WGK Germany：2

RTECS：JH1100000

PubChem CID：7272

Reaxy-Rn：82121

溶解性：Soluble in chloroform and methanol. Slightly soluble in benzene.

敏感性：对湿度敏感

沸点：142 °C/8 mmHg

熔点：123.0-127.0℃

象形图：

信号词：Warning

危险声明：H319 Causes serious eye irritationH335 May cause respiratory irritation

预防措施声明：P261,P305+P351+P338,P280,P405,P501,P271,P304+P340,P403+P233,P264+P265,P337+P317,P319

个人防护装备：dust mask type N95 (US)， Eyeshields， Gloves

产品包装