Basic information
- CAS
993-16-8- Standard SMILES
[CH3][Sn]([Cl])([Cl])[Cl]- InChIKey
YFRLQYJXUZRYDN-UHFFFAOYSA-K- Molecular formula
- CH3Cl3Sn
- Average molar mass
- 240.1 g/mol
- Monoisotopic mass
- 239.83222784
Overview
Monomethyltin trichloride is an organotin compound. Tin is a chemical element with the symbol Sn and atomic number 50. It is a natural component of the earth's crust and is obtained chiefly from the mineral cassiterite, where it occurs as tin dioxide. (L307, L309)
Names & identifiers
- Preferred name
- Trichloromethylstannane
- IUPAC
- trichloro(methyl)stannane
- English name
- Methyltin trichloride
- Molecular formula
- CH3Cl3Sn
- Molecular weight
- 240.1
Names & synonyms
Show more names
Database identifiers
- CAS
993-16-8- PubChem CID
- 101940
- DTXSID
DTXSID1027346- UNII
- Q2E6V14U06
- EC Number
- 213-608-8
Properties
Computed structural properties
- Topological polar surface area
- 0 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 0
- Rotatable bonds
- 0
- Heavy atoms
- 5
- Formal charge
- 0
- Complexity
- 28.4
Experimental & physicochemical properties
Physical Description
Liquid
Produced as a solid or aqueous solution; Off-white to gray solid or clear colorless liquid; [OECD: SIDS Dossier] Off-white crystalline solid; [Sigma-Aldrich MSDS]
Physicochemical properties
- Melting point
- 48 · 48-51 °C(lit.)
- Boiling point
- 171 °C · 171 °C(lit.)
- Flash point
- 105 °F · 105 °F
- storage temp.
- Flammables area
- solubility
- Soluble in Chloroform, Methanol.
- form
- crystal
- color
- white
- Hydrolytic Sensitivity
- 6 · 6: forms irreversible hydrate
- Sensitive
- Moisture Sensitive
- Exposure limits
- 0.1 mg/m3; · ACGIH: TWA 0.1 mg/m3; STEL 0.2 mg/m3 (Skin)NIOSH: IDLH 25 mg/m3; TWA 0.1 mg/m3
- InChI
- InChI=1S/CH3.3ClH.Sn/h1H3;3*1H;/q;;;;+3/p-3
- InChIKey
- YFRLQYJXUZRYDN-UHFFFAOYSA-K
- SMILES
- [Sn](Cl)(Cl)(Cl)C
- CAS DataBase Reference
- 993 · 993-16-8(CAS DataBase Reference)
- FDA UNII
- 2 E6V14U06 · Q2E6V14U06
- EPA Substance Registry System
- Stannane, trichloromethyl- (993-16-8)
- UNSPSC Code
- 12352103 · 12352103
- NACRES
- 22 · NA.22
- Symbol(GHS)
- 2 · GHS02,GHS05,GHS06,GHS08
- Signal word
- Danger
- Hazard statements
- 228 · H228-H302-H311-H314-H330-H361d-H372-H412
- Precautionary statements
- 210 · P210-P260-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338
- target organs
- thymus,Nervous system
- PPE
- 2 · Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges, type P3 (EN 143) respirator cartridges
- Hazard Codes
- T
- Risk Statements
- 10 · 10-23/24/25-34
- Safety Statements
- 16 · 16-26-36/37/39-45
- RIDADR
- 2921 · UN 2921 8/PG 2
- WGK Germany
- 3 · 3
- RTECS
- 8585500 · WH8585500
- TSCA
- TSCA listed
- HazardClass
- 8 · 8
- PackingGroup
- II
- HS Code
- 29319090 · 29319090
- Storage Class
- 4.1 B · 4.1B - Flammable solid hazardous materials
- Hazard Classifications
- 2 InhalationAcute · Acute Tox. 2 InhalationAcute Tox. 3 DermalAcute Tox. 4 OralAquatic Acute 1Aquatic Chronic 1Eye Dam. 1Flam. Sol. 2Repr. 2Skin Corr. 1BSTOT RE 2
Safety & regulation
GHS classification
GHS Classification
Warning
H361d: Suspected of damaging the unborn child [Warning Reproductive toxicity]
P203, P280, P318, P405, and P501 (click each P-code to see the statement)
Danger
H228 (43.9%): Flammable solid [Danger Flammable solids]
P203, P210, P240, P241, P260, P261, P262, P264, P264+P265, P270, P271, P272, P273, P280, P301+P317, P301+P330+P331, P302+P352, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P318, P321, P330, P333+P317, P361+P364, P362+P364, P363, P370+P378, P391, P403+P233, P405, and P501 (click each P-code to see the statement)
Hazard information
Regulatory Information
Chemical: Stannane, trichloromethyl-
Stannane, trichloromethyl- is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Stannane, trichloromethyl- are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)
Stannane, trichloromethyl-: Does not have an individual approval but may be used under an appropriate group standard
Hazards Summary
Produced as a mixture with up to 10% dimethyltin dichloride (CAS# 753-73-1); [ECHA - Proposal for Harmonised Classification and Labelling] Causes burns; Inhalation may cause corrosive injuries to upper respiratory tract and lungs; May cause skin sensitization; Harmful by ingestion; Toxic by inhalation and skin absorption; [Sigma-Aldrich MSDS] See Tin, organic compounds.
Hazard Classes and Categories
Flam. Sol. 2 (43.9%)
Acute toxicity (ingestion) - category 4
Repr. 2
Safety & protection
Threshold Limit Values (TLV)
0.1 [mg/m3], as Sn
0.2 [mg/m3], as Sn
Toxicology
Toxicity Summary
Organotin compounds produce neurotoxic and immunotoxic effects. Organotins may directly activate glial cells contributing to neuronal cell degeneration by local release of pro-inflammatory cytokines, tumor necrosis factor-_, and/or interleukins. They may also induce apoptosis by direct action on neuronal cells. Organotin compounds stimulate the neuronal release of and/or decrease of neuronal cell uptake of neurotransmitters in brain tissue, including aspartate, GABA, glutamate, norepinephrine, and serotonin. This may be either a contributing factor to or result of the neuronal cell loss. The immunotoxic effects of organotins are characterized by thymic atrophy caused by the suppression of proliferation of immature thymocytes and apoptosis of mature thymocytes. Organotin compounds are believed to exert these effects by suppressing DNA and protein synthesis, inducing the expression of genes involved in apoptosis (such as nur77), and disrupting the regulation of intracellular calcium levels, giving rise to the uncontrolled production of reactive oxygen species, release of cytochrome c to the cytosol, and the proteolytic and nucleolytic cascade of apoptosis. The suppression of proliferation of immature thymocytes further results in the suppression of T-cell-mediated immune responses. Organotins are also endocrine disruptors and are believed to contribute to obesity by inappropriate receptor activation, leading to adipocyte differentiation. Inorganic tin triggers eryptosis, contributing to tin-induced anemia. (L308, A182, A184)
Safety data
- PPE
- Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges, type P3 (EN 143) respirator cartridges
- wgk
- 3
- tsca
- TSCA listed
- rtecs
- WH8585500
- ridadr
- UN 2921 8/PG 2
- hs_code
- 29319090
- risk_code
- 10-23/24/25-34
- Signal word
- Danger
- Symbol(GHS)
- GHS02,GHS05,GHS06,GHS08
- hazard_code
- T
- safety_code
- 16-26-36/37/39-45
- hazard_class
- 8
- Storage Class
- 4.1B - Flammable solid hazardous materials
- packing_group
- II
- target organs
- thymus,Nervous system
- Hazard statements
- H228-H302-H311-H314-H330-H361d-H372-H412
- Hazard Classifications
- Acute Tox. 2 InhalationAcute Tox. 3 DermalAcute Tox. 4 OralAquatic Acute 1Aquatic Chronic 1Eye Dam. 1Flam. Sol. 2Repr. 2Skin Corr. 1BSTOT RE 2
- Precautionary statements
- P210-P260-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338
Chemistry & industry
Pharmacology
Metabolism/Metabolites
Though tin metal is very poorly absorbed, tin compounds may be absorbed via oral, inhalation, or dermal routes, with organotin compounds being much more readily absorbed than inorganic tin compounds. Tin may enter the bloodstream and bind to hemoglobin, where it is distributed and accumulates mainly in the kidney, liver, lung, and bone. Organotin compounds may undergo dealkylation, hydroxylation, dearylation, and oxidation catalyzed by cytochrome P-450 enzymes in the liver. The alkyl products of dealkylation are conjugated with glutathione and further metabolized to mercapturic acid derivatives. Tin and its metabolites are excreted mainly in the urine and feces. (L308)
Uses & manufacturing
General Manufacturing Information
All Other Chemical Product and Preparation Manufacturing
Stannane, trichloromethyl-: ACTIVE
Applications
UsesA chemical used in the synthesis of metallasilesesquiloxanes. Also used in the preparation of organotin(IV) complexes showing antibacterial activities.
Suppliers44 total
Related reactions
Compound notes
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