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Tributyltin Hydride

CAS No.
688-73-3
Chemical Name:
Tributyltin Hydride
Synonyms
Bu3SnH;TRIBUTYLSTANNANE;tbth;Tributyltin;TRI-N-BUTYLTIN HYDRIDE;TRI-N-BUTYLTIN;TRI-N-BUTYLSTANNANE;tributyl-stannan;Tributyltin hydrid;Stannane, tributyl-
CBNumber:
CB6736950
Molecular Formula:
C12H28Sn
Molecular Weight:
291.06
MDL Number:
MFCD00009416
MOL File:
688-73-3.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-05-28 03:34:54

Tributyltin Hydride Properties

Melting point <0°C
Boiling point 80 °C0.4 mm Hg(lit.)
Density 1.082 g/mL at 25 °C(lit.)
vapor pressure 5 hPa (20 °C)
refractive index n20/D 1.473(lit.)
Flash point 104 °F
storage temp. Store below +30°C.
form liquid
color colorless
Specific Gravity 1.103 (20℃)
Water Solubility REACTS
Sensitive Air & Moisture Sensitive
Hydrolytic Sensitivity 7: reacts slowly with moisture/water
BRN 3587329
Exposure limits ACGIH: TWA 0.1 mg/m3; STEL 0.2 mg/m3 (Skin)
NIOSH: IDLH 25 mg/m3; TWA 0.1 mg/m3
InChI 1S/3C4H9.Sn/c3*1-3-4-2;/h3*1,3-4H2,2H3;
InChIKey PIILXFBHQILWPS-UHFFFAOYSA-N
CAS DataBase Reference 688-73-3(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII 4XDX163P3D
NIST Chemistry Reference Tri-n-butyltin hydride(688-73-3)
EPA Substance Registry System Tributyltin (688-73-3)
UNSPSC Code 12352103
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  Skull and Crossbones (GHS06)Health Hazard (GHS08)Environment (GHS09)
GHS06,GHS08,GHS09
Signal word  Danger
Hazard statements  H301-H312-H315-H319-H360-H372-H400-H410
Precautionary statements  P264-P270-P280-P201-P202-P260-P273-P301+P310-P330-P302+P352-P312-P362+P364-P332+P313-P305+P351+P338-P337+P313-P308+P313-P314-P391-P405-P501
Hazard Codes  T,N,F
Risk Statements  10-21-25-36/38-48/23/25-50/53-15-67-65-11
Safety Statements  35-36/37/39-45-60-61-62-36/37-33-26-16
RIDADR  UN 1993 3/PG 3
WGK Germany  3
RTECS  WH8675000
1-10
Autoignition Temperature >250 °C
TSCA  TSCA listed
HazardClass  6.1
PackingGroup  II
HS Code  29310095
Storage Class 3 - Flammable liquids
Hazard Classifications Acute Tox. 3 Oral
Acute Tox. 4 Dermal
Aquatic Acute 1
Aquatic Chronic 1
Eye Irrit. 2
Flam. Liq. 3
Repr. 1B
Skin Irrit. 2
STOT RE 1
Hazardous Substances Data 688-73-3(Hazardous Substances Data)
REACH Registrations Active
Limited Quantities 5.0 L (1.3 gallons) (liquid)
Excepted Quantities Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L)
NFPA 704
2
3 2
W

Tributyltin Hydride price More Price(35)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 8.14109 Tributyltin hydride (stabilized) for synthesis 688-73-3 5ml $45.6 2026-04-30 Buy
Sigma-Aldrich 8.14109 Tributyltin hydride (stabilized) for synthesis 688-73-3 25mL $119 2026-04-30 Buy
Sigma-Aldrich 8.14109 Tributyltin hydride (stabilized) for synthesis 688-73-3 100mL $356 2026-04-30 Buy
Sigma-Aldrich 234788 Tributyltin hydride contains 0.05% BHT as stabilizer, 97% 688-73-3 10g $70.7 2026-04-30 Buy
Sigma-Aldrich 234788 Tributyltin hydride contains 0.05% BHT as stabilizer, 97% 688-73-3 50g $205 2026-04-30 Buy
Product number Packaging Price Buy
8.14109 5ml $45.6 Buy
8.14109 25mL $119 Buy
8.14109 100mL $356 Buy
234788 10g $70.7 Buy
234788 50g $205 Buy

Tributyltin Hydride Chemical Properties, Uses, Production

Synthesis

In a 1000ml reaction flask, add 300g (0.5mol) of tributyltin hydride oxide and 100g of hydrogen-containing polysiloxane or hydrogen-containing polysiloxane waste (1% hydrogen content) while stirring. The reaction system is slowly heated (generally not exceeding 20℃; for large quantities, cooling should be considered). After about 1 hour, the heating is stopped, and stirring continues for 30 minutes. The fraction at 105~107℃/0.8kPa is collected by vacuum distillation to obtain a colorless liquid, namely tributyltin hydride.

Synthesis of Tributyltin Hydride

Uses

Tributyltin hydride (TBTH) is as a reagent for the reductive ionic 1,5-cyclization of 3-azamuconoates (3-azahexa-2,4-dienedioates).
Tributyltin hydride can also mediate cyclisation of unsaturated ethers and amines bearing an aldehyde or α,β-unsaturated ketone group.
Tributyltin hydride is also a reducing agent for the reduction of nitroalkenes.

Chemical Properties

clear colourless liquid

Uses

A widely used radical reagent used in reductive cleavage,1 radical dehalogenation, and intramolecular radical cyclization.2

Uses

Tributyltin hydride the most commonly used tin hydride,it is less toxic than the more volatile trierhyl and trimethyl analogues, and it is therefore the most widely used organostannane.
Tributyltin hydride, the reagent of choice for generating alkyl radical, is also widely used in aryl radical cyclization. Other reagents developed for this purpose include samarium diiodide, palladium reagents organosilanes as well as manganese triacetate and transition metals for carbocyclization.

Uses

Tributyltin hydride is used to effect carbon—carbon bond formation with the displacement of halide from a suitably oriented haloalkyl group.

Application

Has been reviewed. Catalyzes the Si-H reduction of α,β-unsaturated ketones. Useful in the reductive amination of ketones and aldehydes to form 3° amines.

Hazard

Moderately toxic by inhalation.

reaction suitability

reagent type: reductant

Safety Profile

Moderately toxic by inhalation. When heated to decomposition it emits acrid smoke and irritating fumes. See also TIN COMPOUNDS.

Purification Methods

Dissolve it in Et2O, add quinol (500mg for 300mL, to stabilize it), dry over Na2SO4, filter, evaporate and distil it under dry N2. It is a clear liquid if dry and decomposes very slowly. In the presence of H2O, traces of tributyl tin hydroxide are formed in a few days. Store it in sealed glass ampoules in small aliquots. It is estimated by reaction with aqueous NaOH when H2 is liberated. CARE: stored samples may be under pressure due to liberated H2. [Van Der Kerk et al. J Appl Chem 7 366 1937, Ono et al. Tetrahedron 41 4013 1985, Neuman Synthesis 665 1987, Curran Synthesis 417 1988, Beilstein 4 IV 4312.]

Global Suppliers ( 229)
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Nanjing Kaitian Chemical Co., Ltd 15951673915 377901895@qq.com China 94 58
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Tangyuan Life Science (Shanghai) Co., Ltd 400-618-1121 17316483629 sales@townyuan.com China 2761 58
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Chang Zhou Chemistar Chemistry Technology Co.,Ltd +86 (519) 8689-6136 kr@krchemistar.com China 181 55
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  • What is Tributyltin Hydride?
  • Tributyltin hydride (TBTH) is as a reagent for the reductive ionic 1,5-cyclization of 3-azamuconoates (3-azahexa-2,4-dienedioa....
  • Feb 18,2020

View Latest Price from Tributyltin Hydride manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Tributyltin Hydride pictures 2019-07-14 Tributyltin Hydride
688-73-3
$1.00 1KG 99% 25kg Career Henan Chemical Co
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