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Description Back to Top
Methylparaben, NF is an excipient used as a preservative. All Spectrum Chemical NF grade products are manufactured, packaged and stored under current Good Manufacturing Practices (cGMP).
Specifications Back to Top
Test | Specification | |
---|---|---|
Min | Max | |
APPEARANCE | ||
IDENTIFICATION A | FTIR MATCHES REFERENCE | |
IDENTIFICATION:B | 125 | 128°C |
ASSAY | 98.0 | 102.0 % |
COLOR OF SOLUTION | CLEAR, LESS COLOR THAN STANDARD | |
ACIDITY | 0.1 ml | |
RESIDUE ON IGNITION | 0.1 % | |
RELATED SUBSTANCES: | . | |
p-HYDROXYBENZOIC ACID | 0.5 % | |
UNSPECIFIED IMPURITIES | 0.5 % | |
TOTAL IMPURITIES | 1.0 % | |
ELEMENTAL IMPURITIES | AS REPORTED | |
EXPIRATION DATE | ||
DATE OF MANUFACTURE | ||
RESIDUAL SOLVENTS | AS REPORTED | |
CLASS 2 (SOLVENT) / METHANOL | . | |
MONOGRAPH EDITION |
Shipping & Storage Back to Top