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HallStar® BST-COS

INCI Name: Butyl Stearate
Product Code: 0029
CAS #: 123-95-5
EINECS: 204-666-5
Brand: HallStar®

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HallStar® BST-COS is a low viscosity, low color and low odor emollient ester prepared from vegetable-derived triple-pressed quality stearic acid and n-butanol. It imparts a light smooth feel to skin, and its broad co-solubility make it useful as an emollient in a wide variety of personal care products and as a plasticizer and superfatting agent in nail care products. Recommended use levels are up to 40% in bath additives, up to 25% in leave-on skin care products (including facial care), and up to 10% in rinse-off products including hair conditioners.

Features & Benefits:

  • Biodegradable
  • Pigment Wetter & Dispersant
  • Resin Plasticizer
  • Solubilizing Agent
  • Superfatting Agent
Appearance Clear pale yellow liquid
Odor Mild, bland, characteristic
Acid Value (mg KOH/g) 0.5
Color (APHA = PtCo) 15
Saponification Value (mg KOH/g) 172
Refractive Index (25°C) 1.442
Iodine Value (gI2/100g) 0.5
Specific Gravity (25°C/25°C) 0.86
Water [Moisture] (%) 0.05
Insoluble In
  • Water
Soluble In
  • Cosmetic Esters
  • Fatty Alcohols (molten)
  • Mineral Oil
  • Silicones
  • Vegetable Oil
Toxicology Profile
  • CIR Expert Panel: Butyl Stearate is safe as used at levels of up to 43%. See IJT 34 (Suppl. 2): 5-69, 2015, for additional information.
  • Other: Butyl Stearate is used in flavors (FEMA No. 2214, JECFA No. 184), further attesting to its safety. The ACGIH TLV for airborne Butyl Stearate is 10 mg/m3 TWA (listed as Stearates).
Packaging
  • Drum - 385lbs

Regional Approvals:

  • Australia
  • Canada
  • China
  • Japan
  • Korea
  • New Zealand
  • Philippines
  • Taiwan
  • US

Applications:

  • Antiperspirants
  • Bar Soaps
  • Bath Additives
  • Deodorants
  • Depilatories
  • Eye makeup
  • Eye care
  • Facial cleansers
  • Facial skin care
  • Foot care
  • Hair conditioners
  • Hand & body care
  • Lip care
  • Makeup
  • Men's grooming
  • Nail Care
  • Shaving products
  • Styling aids
  • Tanning oils

Formulas:

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Name Regional Acceptance  Formula Number
Even Better Face and Neck CreamAustralia, Canada, EU, Japan, Korea, US145-21-02D
Safety Data Sheets

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The information presented herein is believed to be accurate and reliable, but no warranty or guarantee, expressed or implied, is made regarding the information or the performance of any product. Further, nothing contained herein shall be taken as any inducement or recommendation to use, manufacture or sell that may infringe any patents or any other proprietary rights now or hereafter in existence, nor to imply compliance with any regulatory requirements

The Hallstar Company - 120 South Riverside Plaza Suite 1620 - Chicago, IL 60606-3911 USA hallstarbeauty.com