|
Appearance
|
Orange yellow powder
|
|
Assay (spectrophotometric; on dried basis)
|
99 - 101%
|
|
Appearance of solution
|
Passes test
|
|
Specific optical rotation ([α]20/D)
|
-135° to -128°
|
|
Relative absorption
|
|
|
at A373 nm/A267 nm
|
0.31 - 0.33
|
|
at A444 nm/A267 nm
|
0.36 - 0.39
|
|
Lumiflavine
|
Passes test
|
|
Loss on drying (at 105°C)
|
Max 1.5%
|
|
Sulphated ash
|
Max 0.1%
|