Texas Red or sulforhodamine 101 acid chloride is a red fluorescent dye, used in histology for staining cell specimens, for sorting cells with fluorescent-activated cell sorting machines, in fluorescence microscopy applications, and in immunohistochemistry. Texas Red fluoresces at about 615nm, and the peak of its absorption spectrum is at 589nm. The powder is dark purple. Solutions can be excited by a dye laser tuned to 595-605nm, or less efficiently a krypton laser at 567nm. The absorption extinction coefficient at 596nm is about 85,000 M−1cm−1.

CAS：82354-19-6
中文别名：磺基罗丹明101磺酰氯SULFORHODAMINE 101 SULFONYL CHLORIDE;磺基罗丹明101磺酰氯;
英文别名：Sulforhodamine 101 acid chloride;Sulforhodamine 640;Sulforhodamine 101 sulfonyl chloride;
分子式：C31H29ClN2O6S2
分子量：625.155
精确质量：624.116
Psa：123.58
Logp：5.2799

BRN号：8667894
PubChem号：24899558
MDL号：MFCD00012406

储存条件：-20ºC

安全说明：S36/37
危险类别码：R20; R40; R48/20/22
危险品标志：Xn