The naturally occuring isomer is the L-form which has been found in apples and many other fruits and plants. Selective α-amino protecting reagent for amino acid derivatives. Versatile synthon for the preparation of chiral compounds including κ-opioid receptor agonists, 1α,25-dihydroxyvitamin D3 analogue, and phoslactomycin B.

CAS：636-61-3
中文别名：D(+)-苹果酸;(R)-羟基丁二酸;D-苹果酸;
英文别名：D-malate;(R)-2-Hydroxysuccinic acid;(2R)-2-hydroxybutanedioic acid;Butanedioic acid, hydroxy-, (R)-;2(R)-hydroxybutanedioic acid;Malic acid,D;D-(+)-malic acid;L-malic acid;D-(+)-Malic Acid;
分子式：C4H6O5
分子量：134.087
精确质量：134.022
Psa：94.83
Logp：-1.0934

MDL号：MFCD00064212
EINECS号：210-514-9

外观与性状：白色粉末
密度：1.6
沸点：322ºC
熔点：98-104ºC
闪点：153.4ºC
稳定性：Stable at room temperature in closed containers under normal storage and handling conditions.
储存条件：Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.

安全说明：S26-S37/39
危险类别码：R36/37/38
海关编码：29181980
危险品标志：Xi
危险标志：GHS05, GHS07
信号词：Danger
危险性描述：H315; H318; H335
危险性防范说明：P261; P280; P305 + P351 + P338