Benzophenone CAS:119-61-9 CAS NO.119-61-9

CAS	119-61-9
Name	Benzophenone
Appearance	White powder
Application	Intermediates of pigments, medicines, spices and pesticides can also be used as photoinitiators for ultraviolet curing resins, inks and coatings.

Test Items	Requirements	Results
Appearance	White flake crystal,there are rose fragrance	Complies
Identification	Melting point: 148-152°C USP-741	148-150°C
	IR USP-197k	Complies
	TLC	Complies
	A characteristic reaction of chloride	Complies
Appearance of solution	No darker than BY4	Complies
Specific rotation	-0.10°-+0.10°	0°
Related substances	≤0.50%	0.17%
Heavy metals	≤20 ppm USP231	10 PPM
Loss on drying	≤0.5% USP731	0.02%
Residue on ignition	≤0.1% USP 281	0.02%
Assay (HPLC)	98%-102%	99.8%
Conclusion	The product complies with USP32