Butylene Glycol

• CAS: 107-88-0, 6290-03-5
• Formula: CH₃CH(OH)CH₂CH₂OH
• Synonyms: 1,3-butylene glycol, beta-Butylene glycol, Methyltrimethylene glycol, Butane-1,3-diol, 1-Methyl-1,3-propanediol, 1,3-Dihydroxybutane, 1,3 Butylene glycol, (RS)-1,3-Butandiol, 1,3-Butanediol

Altiras is a supplier of 1,3-Butylene Glycol, often referred to as just “butylene glycol”. Altiras offers this product in synthetic form (denoted by CAS 107-88-0). We also are very happy to offer a naturally derived, green chemistry form of this product (CAS 6290-03-5). 1,3 butylene glycol is a clear, colorless and odorless liquid commonly used in the formulation of cosmetics and personal care products. This product can be used as a solvent, humectant, and viscosity decreasing agent.

Why Two Different CAS Numbers?

The naturally derived form of a product commonly has a different CAS number than the synthetic version. We observe this difference not in the chemical formula, or in a different isomer of the product, but in the “direction” or in the “right-handed” versus “left-handed” nature of the product. In many products derived from nature, it is common for the product to be exclusively from a single chirality (structural right handedness) whereas synthetic products often have dual chirality (both right-handedness and left-handedness). For this reason, the natural form of 1,3-butylene glycol that we offer has a unique CAS number (6290-03-5), representing only the right-handed natural form. For almost any reaction, the plant derived natural product performs exactly the same as the synthetic version.

Altiras is a supplier of butylene glycol in bulk truck or isotanks, in 275 gallon Intermediate Bulk Containers (IBCs) or in 55 gallon drums.