Hexylene Glycol
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C6H14O2 118.17

2,4-Pentanediol, 2-methyl-, (±)-.
(±)-2-Methyl-2,4-pentanediol [107-41-5].
» Hexylene Glycol is 2-methyl-2,4-pentanediol.
Packaging and storage— Preserve in tight containers.
Specific gravity 841: between 0.917 and 0.923.
Refractive index 831: between 1.424 and 1.430.
Acidity— Mix 1 mL of phenolphthalein TS with 50 mL of water, and add 0.1 N sodium hydroxide until the solution remains pink for 30 seconds. Add 10 mL of Hexylene Glycol, accurately measured, and titrate with 0.10 N sodium hydroxide until the original pink color returns and remains for 30 seconds: not more than 0.20 mL of 0.10 N sodium hydroxide is required.
Water, Method I 921: not more than 0.5%.
Auxiliary Information— Please check for your question in the FAQs before contacting USP.
Topic/Question Contact Expert Committee
Monograph Robert H. Lafaver, B.A.
(EM105) Excipient Monographs 1
Reference Standards Lili Wang, Technical Services Scientist
USP32–NF27 Page 1248
Chromatographic Column—
Chromatographic columns text is not derived from, and not part of, USP 32 or NF 27.