2,3,4,5-Tetrafluorobenzyl alcohol CAS NO.53072-18-7

Test Item	Standard: USP
Identification	IR spectrum similar to that of RS
Identification	HPLC retention time similar to that of RS
Related substance	Total impurities: NMT0.3%
Related substance	Single impurity: NMT0.1%
Heavy metals	NMT 10ppm
Loss on drying	NMT0.5%
Residue on ignition	NMT0.1%
Assay	98.5%-101.0%

Item	Standard	Test Results
Identification	A.H-NMR:Comply with the structure	Complies
	B.LC-MS:Comply with the structure	Complies
	C.The IR spectrum of sample should be identical with that of reference standard;	Complies
	D.HPLC-ESI-MS The retention time of the major peak in the chromatogram of the Assay preparation corresponds to that in the chromatogram of the Standard preparation, as obtained in the Assay.	Complies
Crystallinity	meets the requirements.	Complies
Loss on drying	≤2.0%	0.19%
Heavy metals	≤10 ppm	<10ppm
Water	≤1.0%	0.1%
Sulphated ash	≤0.5%, determined on 1.0 g.	0.009%
Related substances	Unspecified impurities: for each impurity ≤0.10%	<0.10%
Related substances	Total Impurity ≤0.5%	0.18%
Purity	≥99.0%	99.7%
Assay	99.0%~101.0% (anhydrous substance).	99.8%
Storage	Preserve in well-closed, light-resistant and airtight containers.	Complies