Grade guide
USP Grade (United States Pharmacopeia) chemicals
Material that complies with its USP–NF monograph, the official US compendial standard for drug substances, excipients and dietary ingredients.
755 USP Grade (United States Pharmacopeia) products
Zinc chloride anhydrous, BP/USP/EP, cell culture tested
- CAS
- 7646-85-7
- Formula
- Cl2Zn
- MW
- 136.3 g/mol
VQ-046098
α-Naphtholbenzein (pH Indicator), BP/USP/EP/Ph. Eur.
- CAS
- 145-50-6
- Formula
- C27H18O2
- MW
- 374.4 g/mol
VQ-047204
FAQs
What is the difference between USP and NF?
Both are in the combined USP–NF. Drug substance monographs are generally in the USP. Excipient monographs are generally in the NF.
Is USP grade the same as a USP Reference Standard?
No. USP grade material complies with a monograph. USP Reference Standards are official materials issued by USP for use in compendial tests.
Does USP grade guarantee FDA acceptance?
No. Monograph compliance is expected, but FDA acceptance also depends on manufacturer GMP status, regulatory filings and the buyer's supplier qualification.
Other grades
HPLC GradeGC GradeAR Grade (Analytical Reagent)ACS GradeLR Grade (Laboratory Reagent)Extra Pure GradeMolecular Biology GradeSpectroscopy GradeLC-MS GradeIP Grade (Indian Pharmacopoeia)BP Grade (British Pharmacopoeia)Ph. Eur. Grade (European Pharmacopoeia)Food Grade (FCC)Technical GradeElectronic GradeDeuterated & Stable-Isotope-Labelled CompoundsPharmaceutical Secondary Reference Standards
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