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| CAS No.: | 818-08-6 |
|---|---|
| Name: | Dibutyltin oxide |
| Article Data: | 41 |
| Molecular Structure: | |
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|
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| Formula: | C8H18OSn |
| Molecular Weight: | 248.94 |
| Synonyms: | Dibutyltin oxide(6CI);Cotin 100;Di-n-butyltin oxide;Dibutyloxostannane;Dibutyloxotin;Dibutylstannane oxide;Eurecat 9555;Eurecat 9560;Fascat 4201;Fomrez SUL 11A;NSC 28130;Neostann U 300;Stann BO;Tegokat 248;U 300;Dibutyltin Oxide (DBTO); |
| EINECS: | 212-449-1 |
| Density: | 1,5 g/cm3 |
| Melting Point: | ≥300 °C(lit.) |
| Boiling Point: | >300°C |
| Flash Point: | 81-83°C |
| Solubility: | 4.0 mg/L (20 °C ) in water |
| Appearance: | white powder |
| Hazard Symbols: |
 T
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| Risk Codes: | 25 |
| Safety: | 36/37/39-45-24/25 |
| Transport Information: | UN 3146 6.1/PG 2 |
| PSA: | 17.07000 |
| LogP: | 3.00860 |
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Consensus Reports
Standards and Recommendations
ACGIH TLV: TWA 0.1 mg(Sn)/m3; STEL 0.2 mg(Sn)/m3 (skin).
NIOSH REL: (Organotin Compounds) TWA 0.1 mg(Sn)/m3
Analytical Methods
Specification
The Dibutyltin oxide, with the CAS registry number 818-08-6, is also known as Di-n-butyltin oxide. It belongs to the product categories of Alkyl Metals; Biochemistry; Classes of Metal Compounds; Grignard Reagents & Alkyl Metals; Reagents for Oligosaccharide Synthesis; Sn (Tin) Compounds; Synthetic Organic Chemistry; Typical Metal Compounds. Its EINECS registry number is 212-449-1. This chemical's molecular formula is C8H18OSn and molecular weight is 248.94. Its IUPAC name is called dibutyl(oxo)tin. This chemical's classification codes are Organometallic; Reproductive Effect; Skin / Eye Irritant. The product should be sealed and stored in cool, dry place.
Physical properties of Dibutyltin oxide: (1)H-Bond Donor: 0; (2)H-Bond Acceptor: 1; (3)Rotatable Bond Count: 6; (4)Exact Mass: 250.037962; (5)MonoIsotopic Mass: 250.037962; (6)Topological Polar Surface Area: 17.1; (7)Heavy Atom Count: 10; (8)Formal Charge: 0; (9)Complexity: 81.3; (10)Isotope Atom Count: 0; (11)Defined Atom StereoCenter Count: 0; (12)Undefined Atom StereoCenter Count: 0; (13)Defined Bond StereoCenter Count: 0; (14)Undefined Bond StereoCenter Count: 0; (15)Covalently-Bonded Unit Count: 1.
Dibutyltin oxide, or dibutyloxotin, is an organotin compound used in organic synthesis. Among many synthetic applications, it is particularly useful in regioselective alkylation, acylation, and sulfonation reactions for starting materials containing alcohol functional groups.
Uses of Dibutyltin oxide: it can be used to produce Bis(diallylisocyanurato)dibutyltin at temperature of 160 - 200 °C. This reaction time is 30 min.
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When you are using this chemical, please be cautious about it as the following:
This chemical that at low level can cause damage to health. It is toxic if swallowed. You must avoid contacting it with skin and eyes. Whenever you will contact it, please wear suitable protective clothing, gloves and eye/face protection. In case of accident or if you feel unwell seek medical advice immediately (show the label where possible).
You can still convert the following datas into molecular structure:
(1)Canonical SMILES: CCCC[Sn](=O)CCCC
(2)InChI: InChI=1S/2C4H9.O.Sn/c2*1-3-4-2;;/h2*1,3-4H2,2H3
(3)InChIKey: JGFBRKRYDCGYKD-UHFFFAOYSA-N
The toxicity data is as follows:
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| rabbit | LD | skin | > 2gm/kg (2000mg/kg) | LUNGS, THORAX, OR RESPIRATION: OTHER CHANGES KIDNEY, URETER, AND BLADDER: OTHER CHANGES SKIN AND APPENDAGES (SKIN): "DERMATITIS, OTHER: AFTER SYSTEMIC EXPOSURE" | National Technical Information Service. Vol. OTS0570737, |
| rabbit | LDLo | oral | 1500mg/kg (1500mg/kg) | Sangyo Igaku. Japanese Journal of Industrial Health. Vol. 15, Pg. 3, 1973. | |
| rat | LD50 | intraperitoneal | 40mg/kg (40mg/kg) | PERIPHERAL NERVE AND SENSATION: FLACCID PARALYSIS WITHOUT ANESTHESIA (USUALLY NEUROMUSCULAR BLOCKAGE) BEHAVIORAL: GENERAL ANESTHETIC BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) | Food and Cosmetics Toxicology. Vol. 7, Pg. 47, 1969. |
| rat | LD50 | oral | 44900ug/kg (44.9mg/kg) | "Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J., Prague, Czechoslovakia, Avicenum, 1986Vol. -, Pg. 1248, 1986. |