Tris-BP
Title: Tris-BP
CAS Registry Number: 126-72-7
CAS Name: 2,3-Dibromo-1-propanol phosphate(3:1)
Additional Names: phosphoric acid tris(2,3-dibromopropyl) ester; tris(2,3-dibromopropyl) phosphate
Trademarks: Apex 462-5; Flammex AP; Flammex T 23P; Firemaster LV-T 23P (Michigan Chem.); Firemaster T 23P (Michigan Chem.); T 23P; Fyrol HB 32 (Stauffer)
Molecular Formula: C9H15Br6O4P
Molecular Weight: 697.61
Percent Composition: C 15.50%, H 2.17%, Br 68.72%, O 9.17%, P 4.44%
Literature References: Prepn: G. E. Walter, I. Hornstein, US 2574515 (1951 to Glenn. L. Martin Co.); D. E. Overbeek, R. C. Nametz, US 3046297 (1962 to Michigan Chem. Co.); R. W. Rimmer, US 3223755 (1965 to duPont). Use in flameproofing: W. D. Paist, N. Van Gorder, US 2662834 (1953 to Celanese). Mutagenicity studies: M. J. Prival et al., Science 195, 76 (1977); A. Nakamura et al., Mutat. Res. 66, 373 (1979). Carcinogenicity studies: B. L. Van Duuren et al., Cancer Res. 38, 3236 (1978); G. Reznik et al., J. Natl. Cancer Inst. 63, 205 (1979). Review of toxicology: F. A. Daniher, Proc. Symp. Text. Flammability 4, 126-143 (1976). Review: A. Blum, B. N. Ames, Science 195, 17 (1977).
Properties: Viscous liquid. LD50 orally in rats: >5.0 g/kg (Daniher).
Toxicity data: LD50 orally in rats: >5.0 g/kg (Daniher)
CAUTION: This substance is reasonably anticipated to be a human carcinogen: Report on Carcinogens, Eleventh Edition (PB2005-104914, 2004) p III-84.
Use: Flame retardant. Formerly used in children's sleepwear.

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