IARC Cancer Review: Group 3 IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 7 ,1987,p. 376.(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) ; Human Inadequate Evidence IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 39 ,1986,p. 195.(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) , IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 19 ,1979,p. 439.(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) ; Animal Limited Evidence IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 39 ,1986,p. 195.(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) ; Animal Sufficient Evidence IMEMDT    IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 19 ,1979,p. 439.(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. Community Right-To-Know List.

OSHA PEL: TWA 1 ppm
ACGIH TLV: TWA 5 ppm; Not Classifiable as a Human Carcinogen
DFG MAK: 2 ppm (8 mg/m³); Confirmed Animal Carcinogen with Unknown Relevance to Humans
NIOSH REL: (Vinyl Halides) TWA reduce to lowest detectable level
DOT Classification:  3; Label: Flammable Liquid

For occupational chemical analysis use OSHA: #19 or NIOSH: Vinylidene Chloride, 1015.

The Vinylidene chloride with CAS registry number of 75-35-4 is also known as Ethene, 1,1-dichloro-. The IUPAC name is 1,1-Dichloroethene. It belongs to product categories of Industrial/Fine Chemicals;Vinylchloride; Gas Cylinders; Halides (Low Boiling point); Synthetic Organic Chemistry; Standard Solutions (VOC); Analytical Chemistry; Standard Solution of Volatile Organic Compounds for Water & Soil Analysis; Alpha Sort; D; DAlphabetic; DIA - DIC;Volatiles/ Semivolatiles. Its EINECS registry number is 200-864-0. In addition, the formula is C₂H₂Cl₂ and the molecular weight is 96.94. This chemical is a colourless liquid that may cause damage to health. Besides, it may catch fire in contact with air and have a very low flash point. What's more, This chemical is mainly used as a comonomer in the polymerization of vinyl chloride, acrylonitrile, and acrylates. It is also used in semiconductor device fabrication.

Physical properties about Vinylidene chloride are: (1)ACD/LogP: 1.77; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 1.77; (4)ACD/LogD (pH 7.4): 1.77; (5)ACD/BCF (pH 5.5): 13.12; (6)ACD/BCF (pH 7.4): 13.12; (7)ACD/KOC (pH 5.5): 219.72; (8)ACD/KOC (pH 7.4): 219.72; (9)Index of Refraction: 1.432; (10)Molar Refractivity: 20.58 cm³; (11)Molar Volume: 79.2 cm³; (12)Surface Tension: 23.1 dyne/cm; (13)Density: 1.223 g/cm³; (14)Enthalpy of Vaporization: 26.14 kJ/mol; (15)Boiling Point: 31.6 °C at 760 mmHg; (16)Vapour Pressure: 601 mmHg at 25 °C.

Preparation of Vinylidene chloride: it is prepared by dehydrochlorination of 1,1,2-trichloroethane, which in the production of vinyl chloride and chlorine with catalyst iron at 80-90 °C.

(1) CH₂=CHCl + Cl₂ → Cl₂CHCH₂Cl
(2) Cl2CHCH₂Cl + NaOH → Cl2C=CH₂ + NaCl + H₂O

Uses of Vinylidene chloride: it is used to produce 3,3-dichloro-1-phenyl-propenone by reaction with benzoyl chloride. The reaction occurs with reagent AlCl₃ and the yield is about 67%.

When you are using this chemical, please be cautious about it. As a chemical, it is extremely flammable and harmful by inhalation. It has danger of very serious irreversible effects through inhalation, in contact with skin and if swallowed. However, there is limited evidence of a carcinogenic effect. During using it, wear suitable protective clothing and gloves. Do not empty into drains and keep away from sources of ignition. In case of accident or if you feel unwell seek medical advice immediately. If swallowed, seek medical advice immediately and show this container or label. After using it, keep container tightly closed.

You can still convert the following datas into molecular structure:
1. Canonical SMILES: C=C(Cl)Cl
2. InChI: InChI=1S/C2H2Cl2/c1-2(3)4/h1H2
3. InChIKey: LGXVIGDEPROXKC-UHFFFAOYSA-N

The toxicity data is as follows:

Organism	Test Type	Route	Reported Dose (Normalized Dose)	Effect	Source
dog	LDLo	intravenous	225mg/kg (225mg/kg)		Quarterly Journal of Pharmacy & Pharmacology. Vol. 7, Pg. 205, 1934.
dog	LDLo	oral	5750mg/kg (5750mg/kg)		Quarterly Journal of Pharmacy & Pharmacology. Vol. 7, Pg. 205, 1934.
human	TCLo	inhalation	25ppm (25ppm)	BEHAVIORAL: GENERAL ANESTHETIC LIVER: OTHER CHANGES KIDNEY, URETER, AND BLADDER: OTHER CHANGES	Chemistry and Industry Vol. (11), Pg. 463, 1976.
mouse	LD50	oral	194mg/kg (194mg/kg)		British Journal of Cancer. Vol. 37, Pg. 411, 1978.
rabbit	LD	skin	> 2426mg/kg (2426mg/kg)		National Technical Information Service. Vol. AD-A180-198,
rabbit	LDLo	subcutaneous	3700mg/kg (3700mg/kg)		Quarterly Journal of Pharmacy & Pharmacology. Vol. 7, Pg. 205, 1934.
rat	LC50	inhalation	6350ppm/4H (6350ppm)	BEHAVIORAL: COMA	Toxicology and Applied Pharmacology. Vol. 18, Pg. 168, 1971.
rat	LD50	oral	200mg/kg (200mg/kg)		National Technical Information Service. Vol. PB85-143766,