Table 3.

Stability of [¹⁸F]AlF-FAPI-74 for each formulation solution

Formulation solution		Elapsed time after synthesis (hr)
Batch		0 (EOS)	2	3	4
		Radiochemical purity (%)
Saline
No. 1		98	96	79	54
No. 2		97	96	94	89
Saline containing 10 mg ascorbic acid and 90 mg sodium ascorbate (pH 5.0)		98	97	96	95
Saline containing 100 mg sodium ascorbate		98	97	97	96
Commercially available phosphate buffered saline (pH 7.4)		98	96	96	95
10 mM phosphate buffered saline (pH 6.7)		98	96	95	89
Commercially available phosphate buffered saline (pH 7.4) containing 100 mg sodium ascorbate		98	97	97	97
10 mM phosphate buffered saline (pH 6.7) containing 100 mg sodium ascorbate
No. 1		98	97	97	97
No. 2		98	97	97	97
No. 3		98	97	97	97

EOS, end of synthesis