BUTYL STEARATE

Description

BUTYL STEARATE · CAS 123-95-5 · C22H44O2. UNII 6Y0AI5605C. Color/Form: WAXY OR OILY (ABOVE 20 °C); Boiling Point: 343 °C; Boiling Point: 343.00 °C. @ 25.00 mm Hg.

Identification

CAS Registry Number	123-95-5
PubChem CID	31278
Molecular formula	C22H44O2
IUPAC name	butyl octadecanoate
UNII (FDA)	6Y0AI5605C
FEMA number	2214
JECFA number	184

Computed Descriptors

Molecular Weight	340.6
XLogP3	9.8
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	2
Rotatable Bond Count	20
Exact Mass	340.334130642
Monoisotopic Mass	340.334130642
Topological Polar Surface Area	26.3
Heavy Atom Count	24
Formal Charge	0

Physical & Chemical Properties

Color/Form	WAXY OR OILY (ABOVE 20 °C)
Boiling Point	343 °C
Boiling Point	343.00 °C. @ 25.00 mm Hg
Boiling Point	343 °C; 220-225 °C (25 mm Hg)
Melting Point	27 °C
Melting Point	27.5 °C
Flash Point	320 °F (160 °C) (CLOSED CUP)
Solubility	1.7 mg/mL at 25 °C
Density	0.854 @ 25 °C/4 °C
Density	0.855-0.875

Physical description & handling notes

• Wet Solid; Liquid
• Colorless liquid; m[ = 19.5-20 deg C; [Hawley] Solid or colorless or very pale liquid (above 20 deg C); mp = 27 deg C; [HSDB] Odorless oily liquid; mp approximately 23 deg C; [MSDSonline]
• Solid
• colourless, waxy solid, odourless or with a faintly fatty odour
• Crystals from alcohol, propanol, or ether
• COLORLESS OR VERY PALE YELLOW LIQUID ABOVE 20 °C

Regulatory Status

Regulatory & Food Contact	EU Flavoring substances FDA Substance added to food: FLAVOR ENHANCER, FLAVORING AGENT OR ADJUVANT, FORMULATION AID FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS Flavoring Agents FLAVOURING_AGENT: Flavouring Agent Dairy
GHS notification summary	91.6% (901 / 984)

GHS Hazard Classification

GHS notification summary	91.6% (901 / 984)

Documented Uses

• Pulp and Paper Processing [Category: Industry]
• Textiles (Fiber & Fabric Manufacturing) [Category: Industry]
• Painting (Pigments, Binders, and Biocides) [Category: Paint]
• Plastic Composites Manufacturing [Category: Industry]
• Leather Tanning and Processing [Category: Industry]
• Cement Producing [Category: Industry]

Synonyms

BUTYL STEARATE; 123-95-5; Butyl octadecanoate; N-Butyl stearate; Octadecanoic acid, butyl ester; Kesscoflex BS; Kessco BSC; n-Butyl octadecanoate; Butyl octadecylate; Starfol BS-100; Stearic acid, butyl ester; RC plasticizer B-17; Tegester butyl stearate; Wickenol 122; Witcizer 200; Witcizer 201

Frequently Asked Questions

What are the CAS number and molecular formula of BUTYL STEARATE?

CAS 123-95-5; molecular formula C22H44O2; molecular weight — g/mol.

What other names is BUTYL STEARATE known by?

BUTYL STEARATE, 123-95-5, Butyl octadecanoate, N-Butyl stearate, Octadecanoic acid, butyl ester, Kesscoflex BS.

What is the regulatory status of BUTYL STEARATE?

Documented regulatory listings: EU Flavoring substances; FDA Substance added to food: FLAVOR ENHANCER, FLAVORING AGENT OR ADJUVANT, FORMULATION AID; FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS.

Is BUTYL STEARATE classified as hazardous?

91.6% of GHS notifications report no hazard classification (901 of 984).

What are the key physical properties of BUTYL STEARATE?

Color/Form: WAXY OR OILY (ABOVE 20 °C); Boiling Point: 343 °C; Boiling Point: 343.00 °C. @ 25.00 mm Hg; Boiling Point: 343 °C; 220-225 °C (25 mm Hg).

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.