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Substance Name: Siloxanes and Silicones, di-Me, hydroxy-terminated
RN: 70131-67-8

Classification Codes

  • TSCA Flag XU (Exempt from Reporting under Chemical Data Reporting Rule)
  • TSCA UVCB

Molecular Formula

  • Unspecified
 
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Links to Resources

NLM Resources (File Locators)

Regulatory Agencies (Superlist Locators)

Other Resources (Internet Locators)

Names and Synonyms

Synonyms

  • alpha-Hydro-omega-hydroxypoly(dimethylsiloxane)
  • Baysilon C 0.7
  • FM 0411
  • Hydroxy-terminated dimethyl siloxanes and silicones
  • Macromonomer HK20
  • Poly(oxy(dimethylsilylene), alpha-hydro, omega-hydroxy-
  • Polydimethylsiloxane, hydroxy end-blocked
  • PS 195
  • PS 339.7
  • Q 4-2737
  • RF 5000
  • Silanol-terminated di-Me siloxanes
  • Silicone L-90000/1000
  • Siltech S 700
  • X 21-22-160AS
  • X 22-160A
  • X 22-160AS
  • X 22-160B
  • X 22-176B

Systematic Names

  • Siloxanes and Silicones di-Me, hydroxy-terminated 42% in dimethyl hydrolyzate
  • Siloxanes and Silicones, di-Me, hydroxy-terminated

Superlist Name

  • Siloxanes and Silicones, di-Me, hydroxy-terminated

Registry Numbers

CAS Registry Number

  • 70131-67-8

Other Registry Numbers

  • 2052359-57-4
  • 57571-37-6
  • 63148-60-7

System Generated Number

  • 0070131678

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
rabbit LD50 skin > 16mL/kg (16mL/kg)   National Technical Information Service. Vol. OTS0572497,
rabbit LD50 skin > 16mL/kg (16mL/kg) KIDNEY, URETER, AND BLADDER: OTHER CHANGES National Technical Information Service. Vol. OTS0572497,
rabbit LD50 skin > 2gm/kg (2000mg/kg)   National Technical Information Service. Vol. OTS0590158,
rat LC50 inhalation > 8750mg/m3/7H (8750mg/m3) LUNGS, THORAX, OR RESPIRATION: OTHER CHANGES National Technical Information Service. Vol. OTS0590158,
rat LD50 oral > 64mL/kg (64mL/kg)   National Technical Information Service. Vol. OTS0572497,
rat LD50 oral > 64mL/kg (64mL/kg) LIVER: OTHER CHANGES

GASTROINTESTINAL: OTHER CHANGES
National Technical Information Service. Vol. OTS0572497,
rat LD50 oral > 15400mg/kg (15400mg/kg) SENSE ORGANS AND SPECIAL SENSES: PTOSIS: EYE

BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

KIDNEY, URETER, AND BLADDER: URINE VOLUME INCREASED
National Technical Information Service. Vol. OTS0590158,