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Butylated Hydroxytoluene USP/Ph.Eur 25KG
C15H24OFebruary 2017
220.35January 2020
1DescriptionWhite crystalline solid having a faint characteristic odorWhite, crystalline solid, having a faint, characteristic odor.
2SolubilityPassesFreely soluble in alcohol, in chloroform, and in ether; insoluble in water and in propylene glycol.
3Identification A (By IR)CompliesTo comply the test
4Identification B (by Chromatogram)CompliesThe retention time of BHT peak of sample solution corresponds to that of the standard solution, shlould exhibit only one major peak corresponding to the main compound.
5Assay99.56%NLT 99.0% and NMT 101.5%
6Residue on ignition0.0009%NMT 0.002%
7Heavy metalsNMT 10 µg/gNMT 10 µg/g
8Organic impurities : p-Cresol or m- cresolNMT 0.1%NMT 0.1%
9Organic impurities : 3-tert-butyl 4-hydroxyanisoleNMT 0.1%NMT 0.1%
10Organic impurities: 3,5-Di-tert-butyl-4-hydroxybenzoic acidNMT 0.1%NMT 0.1%
11Organic impurities : 2-tert-Butyl-4-methylphenol or 2-tert-butyl-5-methylphenolNMT 0.1%NMT 0.1%
12Organic impurities : 3,5-Di-tert-butyl-4-hydroxybenzaldehydeNMT 0.1%NMT 0.1%
13Organic impurities : 4,6-Di-tert-butyl-m-cresolNMT 0.1%NMT 0.1%
14Organic impurities : 2,6-Di-tert-butyl-phenolNMT 0.1%NMT 0.1%
15Organic impurities : Any unspecified impurity0.013%NMT 0.1%
16Organic impurities : total impurities0.013%NMT 0.7%
17CharactersA white crystalline powder, practically insoluble in water, very soluble in acetone, freely soluble in alcohol and in vegetable oilsA white or yellow-white, crystalline powder, practically insoluble in water, very soluble in acetone, freely soluble in alcohol and in vegetable oils.
18Identification A (By Freezing point)69°C69°C to 70°C
19Identification B (By UV absorbance test)CompliesThe specific absorbance at the maximum is 80 to 90. Examined between 230nm and 300nm , the solution shows an absorption maximum at 278nm.
20Identification C (By IR)CompliesTo comply the test
21Identification D (By Chemical test)CompliesA blue colour develops.
22Appearance of solutionPassesThe solution is clear and not more intensely coloured than reference solution Y5 or BY5.
23Freezing point69°C69°C to 70°C
24Related substances (By TLC)CompliesAny spot in the chromatogram obtained with the test solution, apart from the principal spot, is not more intense than the spot in the chromatogram obtained with the ref.solution (0.5%max)
25Sulfated ash0.08%NMT 0.1%
26Methanol as residual solvent0.0033%0.3% max
27Residual solvent (ICH)CompliesTo comply the test for Class 1 solvents (No class 1, class 2, class 3 & other solvents likely to be present other than mentioned above)
FINAR provides this analytical report in good faith and to the best of its knowledge. It should not be substituted for the users own raw material quality control.
Tested By
(Chemist - Quality Control)
Approved By
(Head - Quality Control)
Computer Generated Report - Does not require Signature.
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