Chiral standards are  used in the chiral chromatography to measure to measure the difference in the absorption coefficients between left handed and right handed cicularly polarized light.

CAS Number
117707-40-1
Alternate CAS Number
2254176-11-7(HCl Salt)
CAS Number
151250-76-9
Alternate CAS Number
1346603-62-0(HCl salt)
CAS Number
138890-62-7
Alternate CAS Number
150937-43-2(HCl Salt)
CAS Number
404034-55-5
Alternate CAS Number
2775292-24-3(oxalate salt)