Tin fluoride (SnF2)

IARC Cancer Review: Group 3 IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 7 ,1987,p. 208.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) . EPA Genetic Toxicology Program. Reported in EPA TSCA Inventory.

OSHA PEL: TWA 2 mg(Sn)/m³; 2.5 mg(F)/m³
ACGIH TLV: TWA 2 mg(Sn)/m³; TWA 2.5 mg(F)/m³; BEI: 3 mg/g creatinine of fluorides in urine prior to shift; 10 mg/g creatinine of fluorides in urine at end of shift.
NIOSH REL: TWA 2.5 mg(F)/m³

With the CAS registry number 7783-47-3, the product name and IUPAC name of this chemical are the same which is called Tin(II) fluoride. Known by the common name stannous fluoride, it is a chemical compound with the formula SnF₂. It belongs to the product category of Inorganics. Its EINECS registry number is 231-999-3. 

Physical properties of Tin(II) fluoride: (1)H-Bond Donor: 0; (2)H-Bond Acceptor: 2; (3)Rotatable Bond Count: 0; (4)Exact Mass: 157.899003; (5)MonoIsotopic Mass: 157.899003; (6)Topological Polar Surface Area: 0; (7)Heavy Atom Count: 3; (8)Formal Charge: 0; (9)Complexity: 2.8; (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.

Preparation of Tin(II) fluoride: this chemical can be prepared by evaporating a solution of SnO in 40% HF.

Uses of Tin(II) fluoride: This chemical is used as an ingredient in toothpastes that are typically more expensive than those that use sodium fluoride. Used in combination with calcium minerals, sodium fluoride is ineffective while stannous fluoride remains effective in strengthening tooth enamel. Stannous fluoride has also been shown to be more effective than sodium fluoride in controlling gingivitis. Stannous fluoride was used, under the trade name "Fluoristan," in the original formulation of the toothpaste Crest, though it was later replaced with sodium monofluorophosphate, or "Fluoristat."

When you are using this chemical, please be cautious about it as the following:
This chemical may cause damage to health and may destroy living tissue on contact. It is harmful if swallowed. In addition, it is irritating to skin. There will be a risk of serious damage to eyes. In case of contact with eyes, you should rinse immediately with plenty of water and seek medical advice. Whenever you will contact it, please wear eye/face protection.

You can still convert the following datas into molecular structure:
(1)Canonical SMILES: F[Sn]F
(2)InChI: InChI=1S/2FH.Sn/h2*1H;/q;;+2/p-2
(3)InChIKey: ANOBYBYXJXCGBS-UHFFFAOYSA-L

The toxicity data is as follows:

Organism	Test Type	Route	Reported Dose (Normalized Dose)	Effect	Source
mouse	LD50	intraperitoneal	16150ug/kg (16.15mg/kg)		Deutsche Zahnaerztliche Zeitschrift. Vol. 34, Pg. 484, 1979.
mouse	LD50	oral	184mg/kg (184mg/kg)		Oyo Yakuri. Pharmacometrics. Vol. 2, Pg. 411, 1968.
rat	LD50	oral	360mg/kg (360mg/kg)	BEHAVIORAL: FOOD INTAKE (ANIMAL)	National Technical Information Service. Vol. OTS0555162,