Trinitrobenzenesulfonic acid (C6H3N3O9S) is an nitroaryl oxidizing acid. Due to its extreme oxidative properties, if mixed with reducing agents including hydrides, sulfides, and nitrides, it may begin a vigorous reaction that culminates in almost immediate detonation. The aromatic nitro compounds may explode in the presence of a base such as sodium hydroxide or potassium hydroxide even in the presence of water or organic solvents because of the explosive tendencies of aromatic nitro compounds which increase in the presence of multiple nitro groups. Not much is known about this compound, but it is used as a peptide terminal amino group neutralizer and is currently being investigated for its effects on the immune system.

CAS：2508-19-2
中文别名：苦基磺酸;246-三硝基苯磺酸;2,4,6-三硝基苯磺酸;
英文别名：2,4,6-trinitrophenylsulfonic acid;2,4,6-trinitrobenzensulfonate;Picrylsulfonic acid;Picrylsulfonic acid solution;trinitrobenzenesulfonicacid;picrylsulfonic acid;2,4,6-TRINITROBENZENESULFONIC ACID;PICRYLSULPHONICACID;2,4,6-Trinitrobenzen esulfonic acid;2,4,6-trinitrobenzene-1-sulfonic acid;Trinitrobenzene sulphonic acid;TNBSA;TNBS;2,3-DIMETHYL-1,2,3,4-TETRAHYDRO-QUINOXALINE-5-CARBOXYLIC ACID;2,4,6-trinitro-benzenesulfonicaci;2,4,6-Trinitrobenzenesulfonic acid;TrinitrobenzoylsulfonicAcid;2,4,6-Trinitro-Benzenesulfonic Acid;2,4,6-TRINITOBENZENESULFONIC ACID;
分子式：C6H3N3O9S
分子量：293.168
精确质量：292.959
Psa：200.21
Logp：3.3083

PubChem号：24898307
MDL号：MFCD00064382
BRN号：572358

外观与性状：透明至略模糊的黄色液体
密度：1.14g/mLat 20°C
闪点：58°C
折射率：n20/D 1.431
储存条件：2-8ºC

RTECS号：DA9138500
安全说明：S53; S26; S36/37; S45
危险类别码：R61
WGK Germany：1
海关编码：2904909090
危险品运输编码：UN 3265 8/PG 3
危险类别：1.1D
危险品标志：T; Xn; C; F

用途
测定氨基末端，亲水性修饰化试剂，和氨基复合物的衍生物能用联氨再生，在固相多肽合成中用于检测非完全的匹配。