Light Green SF yellowish, or Light Green, Acid Green, Lissamine green SF, Acid Green 5, Food Green 2, FD&C Green no. 2, Green No. 205, Acid Brilliant Green 5, Pencil Green SF, or C.I. 42095, is a green triarylmethane dye. It is used in histology for staining collagen; for that purpose it is a standard dye in North America. In Masson's trichrome it is used as a counterstain to acid fuchsin. It is a critical component of Papanicolaou stains together with eosin Y and bismarck brown Y. It usually comes as a disodium salt. Its maximum absorption is at 630 (422) nm.

CAS：5141-20-8
中文别名：亮绿SF;淡绿SF;酸性绿5;酸性绿 5;
英文别名：foodgreen2;Light green;ACID GREEN;Light Green SF Yellowish (Formerly Food Green No.2) [as an Indicator;lichtgruen;Green SF;Light Green SF Yellowish;DC Green No.5;LIGHT GREEN SF YELLOWISH;c.i.670;my/68;LIGHT GREEN;MIDORI205;light green SF,yellowish;Acid Green 5;Light Green SF,Yellowish,high purity biological stain;
分子式：C37H34N2Na2O9S3
分子量：792.848
精确质量：792.122
Psa：202.99
Logp：8.2693

UNII：3F7BHA64Z0

外观与性状：深紫色粉末,晶体或结晶粉末
熔点：290ºC (dec.)(lit.)
储存条件：Store at RT.

安全说明：36/37
危险类别码：R68
危险品标志：Xn

用途
浆质染色剂。动物组织染色。与铁苏木素或其他核染料作对比染色。植物组织学中作细胞质和纤维染色。和酸性品红共染花粉管。