O6-Benzylguanine (O6-BG) is a synthetic derivative of guanine. It is an antineoplastic agent. It exerts its effect by acting as an inhibitor of the enzyme O6-alkylguanine-DNA alkyltransferase which leads to interruption of DNA repair and increases the potency of other chemotherapeutic agents that damage DNA, such as temozolomide.

CAS：19916-73-5
中文别名：苄基鸟嘌呤;2-氨基-6-(苄氧基)嘌呤;2-氨基-6-苄氧基嘌呤;
英文别名：6-(Benzyloxy)-7H-purin-2-amine;amino-6-(phenylmethoxy)-9H-purine;O(6)-Benzylguanine;6-O-Benzylguanine;O-6-Benzylguanine;2-Amino-6-(benzyloxy)purine;6-(phenylmethoxy)-9H-purin-2-amine;O6-Benzylguanine;2-Amino-6-benzyloxy-9H-purine;2-amino-6-(phenylmethoxy)-9H-purine;O(6)-Bgua;6-(benzyloxy)guanine;
分子式：C12H11N5O
分子量：241.249
精确质量：241.096
Psa：89.71
Logp：2.0953

PubChem号：24278259
MDL号：MFCD00269931

外观与性状：淡黄色固体
密度：1.431 g/cm3
沸点：621.4ºC at 760 mmHg
熔点：193(dec.)
闪点：329.6ºC
折射率：1.743
蒸汽压：2.3E-15mmHg at 25°C

安全说明：S26-S36
危险类别码：R36/37/38
WGK Germany：3
海关编码：2933990090
危险品标志：Xi
信号词：Warning
危险性防范说明：P261; P305 + P351 + P338
危险标志：GHS07
危险性描述：H315; H319; H335