1,3-butylene glycol product

A 1,3-butylene glycol product having

• a peak area ratio of 100 ppm or lower appearing in a relative retention time ranging from 1.35 to 1.45, provided that the relative retention time for a peak of 1,3- butylene glycol is 1.0, according to a gas chromatographic analysis performed under following conditions:
• Analytical Column:
• a column with dimethylpolysiloxane as a stationary phase, having a length of 30 m, an inner diameter of 0.25 mm, and a film thickness of 1.0 μm;
• Heating Conditions:
• heating from 80° C. to 120° C. at 5° C./min, then heating again to 160° C. at 2° C./min and maintaining for 2 minutes, and further heating to 230° C. at 10° C./min and maintaining at 230° C. for 18 minutes;
• Sample Introduction Temperature:
• 250° C.;
• Carrier Gas:
• helium;
• Column Gas Flow Rate:
• 1 mL/min;
• and
• Detector and Detection Temperature:
• a flame ionization detector (FID), 280° C.