Synonyms: CS12; 2-methyl-propionic acid monoester with 2,2,4-trimethyl-1,3-pentanediol; 2,2,4-trimethyl-1,3-pentanediol-1-monoisobutyrate; Texanol

OSHA IMIS Code Number: R291

Chemical Abstracts Service (CAS) Registry Number: 25265-77-4

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: UF6000000

Chemical Description and Physical Properties:

clear thin combustible liquid with mild odor; floats on water
molecular weight: 216.36
vapor pressure: 1.05 mmHg @ 87°C
molecular formula: C₁₂H₂₄O₃
boiling point: 244°C
melting point: -50°C
flash point: 120°C

Potential Symptoms: Eye and skin irritation; cough

Health Effects: Irritation-Eyes, Skin---Mild (HE16)

Affected Organs: Eyes, skin

Notes:

1. OSHA does not have a PEL for this chemical, which is mainly used as a coalescing agent in water-based paints.
2. Although painters using water-based paints are reported to have increased incidences of eye irritation, skin itching, obstructive airway problems, and frequent urination, none of these symptoms have been attributed specifically to the Texanol in these paints.

Literature Basis:

• International Chemical Safety Cards (WHO/IPCS/ILO): Texanol.
• Ulfvarson U., Alexandersson, R., Dahlqvist, M., Ekholm, U., Bergström, B. and Scullman, J.: Temporary health effects from exposure to water-borne paints. Scand. J. Work Environ. Health 18(6): 376-387, 1992.
• Wieslander, G., Janson, C., Norbäck, D., Björnsson, E., Stålenheim, G. and Edling, C.: Occupational exposure to water-based paints and self-reported asthma, lower airway symptoms, bronchial hyperresponsiveness, and lung function. Int. Arch. Occup. Environ. Health 66(4): 261-267, 1994.
• Wieslander, G., Norbäck, D. and Edling, C.: Occupational exposure to water based paint and symptoms from the skin and eyes. Occup. Environ. Med. 51(3): 181-186, 1994.

Date Last Revised: 11/01/2006

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