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Substance Name: Tetramethyl silicate
RN: 681-84-5
UNII: 19D35VPL66
InChIKey: LFQCEHFDDXELDD-UHFFFAOYSA-N

Classification Code

  • TWA (1 ppm)

Molecular Formula

  • C4-H12-O4-Si

Molecular Weight

  • 152.221
 
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Names and Synonyms

Name of Substance

  • Tetramethoxysilane
  • Tetramethyl silicate

Synonyms

  • AI3-11596
  • EC 211-656-4
  • EINECS 211-656-4
  • HSDB 5511
  • Methyl orthosilicate
  • Methyl silicate
  • Methyl silicate ((CH3)4SiO4)
  • Methyl silicate ((MeO)4Si)
  • Methyl silicate 28
  • Methyl Silicate 39
  • MSP 150
  • NSC 67383
  • Silane, tetramethoxy-
  • Silicic acid, methyl ester of ortho-
  • Silicic acid, tetramethyl ester
  • SIT 7510.0
  • Tetra-methyl orthosilicate
  • Tetramethoxysilane
  • Tetramethyl silicate
  • Tetramethylsilikat
  • Tetramethylsilikat [Czech]
  • TL 190
  • TMOS
  • TSL 8114
  • UNII-19D35VPL66

Systematic Names

  • Silicic acid (H4SiO4), tetramethyl ester
  • Silicic acid, tetramethyl ester
  • Tetramethyl orthosilicate

Superlist Names

  • Methyl orthosilicate [UN2606] [Poison]
  • Methyl silicate
  • Methyl silicate, ((MeO)4Si)
  • Silicic acid, tetramethyl ester
  • UN2606

Registry Numbers

CAS Registry Number

  • 681-84-5

FDA UNII

  • 19D35VPL66

Other Registry Number

  • 12547-31-8

System Generated Number

  • 0000681845

Structure Descriptors

InChI

1S/C4H12O4Si/c1-5-9(6-2,7-3)8-4/h1-4H3

InChIKey

LFQCEHFDDXELDD-UHFFFAOYSA-N

Smiles

[Si](OC)(OC)(OC)OC

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mammal (species unspecified) LD50 oral 1gm/kg (1000mg/kg)   Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 39(4), Pg. 86, 1974.
mouse LCLo inhalation 1gm/m3/10M (1000mg/m3) MUSCULOSKELETAL: OTHER CHANGES

SENSE ORGANS AND SPECIAL SENSES: OTHER: EYE
National Defense Research Committee, Office of Scientific Research and Development, Progress Report.Vol. NDCrc-132, Pg. MAY1942,
mouse LD50 intraperitoneal 250mg/kg (250mg/kg)   "Summary Tables of Biological Tests," National Research Council Chemical-Biological Coordination Center. Vol. 2, Pg. 56, 1950.
rabbit LD50 skin 17mL/kg (17mL/kg)   AMA Archives of Industrial Hygiene and Occupational Medicine. Vol. 4, Pg. 119, 1951.
rabbit LDLo intravenous 100mg/kg (100mg/kg) KIDNEY, URETER, AND BLADDER: "CHANGES IN TUBULES (INCLUDING ACUTE RENAL FAILURE, ACUTE TUBULAR NECROSIS)"

LUNGS, THORAX, OR RESPIRATION: ACUTE PULMONARY EDEMA
"Dangerous Properties of Industrial Materials," Sax, N.I., New York, Van Nostrand Reinhold, 1980Vol. 3, Pg. 935, 1968.
rat LCLo inhalation 250ppm/4H (250ppm)   AMA Archives of Industrial Hygiene and Occupational Medicine. Vol. 4, Pg. 119, 1951.
rat LD50 intraperitoneal 100mg/kg (100mg/kg)   "Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J., Prague, Czechoslovakia, Avicenum, 1986Vol. -, Pg. 1222, 1986.
rat LDLo oral 700mg/kg (700mg/kg) KIDNEY, URETER, AND BLADDER: "CHANGES IN TUBULES (INCLUDING ACUTE RENAL FAILURE, ACUTE TUBULAR NECROSIS)" "Dangerous Properties of Industrial Materials," Sax, N.I., New York, Van Nostrand Reinhold, 1980Vol. 3, Pg. 935, 1968.

Physical Properties

Physical Property Value Units Temp (deg C) Source
Melting Point -2.00E+00 deg C   EXP
Boiling Point 121 deg C   EXP
log P (octanol-water) -1.930 (none)   EST
Atmospheric OH Rate Constant 3.32E-12 cm3/molecule-sec 25 EST

Physical property data is provided to ChemIDplus by SRC, Inc.