1,3-Dichloro-5,5-dimethylhydantoin (CAS 118-52-5) — formula C5H6Cl2N2O2, molecular weight 197.02; category organic chemicals.
| CAS Number | 118-52-5 |
|---|---|
| Molecular Formula | C5H6Cl2N2O2 |
| Molecular Weight | 197.02 |
| Melting Point | 270 °F (NTP, 1992) |
| LogP | 1.1 |
| Applications | Uses: Used as a chlorinating agent, for organic synthesis, and to stabilize vinyl chloride polymers, [ACGIH] Used as a disinfectant and industrial deodorant, used in water treatment and laundry bleaches, [HSDB], Using Disinfectants or Biocides [Category: Clean], Sewer and Wastewater Treatment [Category: Industry], Plastic Composites Manufacturing [Category: Industry], For 1, 3-dichloro-5, 5-dimethylhydantoin (USEPA, OPP Pesticide Code: 028501) ACTIVE products with label matches., SRP: Registered for use in the U.S. but approved pesticide uses may change periodically and so federal, state and local authorities must be consulted for currently approved uses., Chlorinating agent, disinfectant, industrial deodorant. In water treatment. Active ingredient of powder laundry bleaches... ., Intermediate for amino acids, drugs, insecticides. Stabilizer for vinyl chloride polymers. Polymerization catalyst., Dichloro-5, 5-dimethylhydantoin was once used as a chemical warfare decontaminating agent., Industry Uses: Intermediate, Consumer Uses: Intermediate, Household Products: Information on 17 consumer products that contain 1, 3-Dichloro-5, 5-dimethylhydantoin in the following categories is provided:, • Auto Products, • Inside the Home, • Landscaping, Yard, Methods of Manufacturing: Prepared by passing chlorine through an aqueous solution of 5, 5-dimethylhydantoin: ... . Purification by dissolving in concentrated H2SO4 and diluting with ice-water: Lorenz, US patent 2, 828, 308 (1958 to Purex)., Formulations, Preparations: Grades: Technical, U.S. Production: 2023: 37, 830 lb, 2022: 38, 400 lb, 2021: 62, 670 lb, 2020: 50, 820 lb, This chemical is listed as a High Production Volume (HPV) (65FR81686). Chemicals listed as HPV were produced in or imported into the U.S. in >1 million pounds in 1990 and, or 1994. The HPV list is based on the 1990 Inventory Update Rule. (IUR) (40 CFR part 710 subpart B, 51FR21438)., (1986) >500 thousand-1 million pounds, (1990) >500 thousand-1 million pounds, (1994) >1 million-10 million pounds, For more U.S. Production (Complete) data for 1, 3-DICHLORO-5, 5-DIMETHYLHYDANTOIN (6 total), please visit the HSDB record page., General Manufacturing Information: Pesticide, Fertilizer, and Other Agricultural Chemical Manufacturing, 2, 4-Imidazolidinedione, 1, 5-dimethyl-: ACTIVE, ..., Contains, a minimum of 66% "available chlorine" by weight., ... A maximal level of 10 ppm has been recommended for its use as a sanitizing agent in swimming pools. This limit is based on accidental swallowing of 100 to 200 mL of pool water., Agent for keeping cut flowers fresh in vases., Serves as a mild bleach by slowly releasing active chlorine. |
| Category | Organic Chemicals |
Documented applications: Uses: Used as a chlorinating agent, for organic synthesis, and to stabilize vinyl chloride polymers, [ACGIH] Used as a disinfectant and industrial deodorant, used in water treatment and laundry bleaches, [HSDB], Using Disinfectants or Biocides [Category: Clean], Sewer and Wastewater Treatment [Category: Industry], Plastic Composites Manufacturing [Category: Industry], For 1, 3-dichloro-5, 5-dimethylhydantoin (USEPA, OPP Pesticide Code: 028501) ACTIVE products with label matches., SRP: Registered for use in the U.S. but approved pesticide uses may change periodically and so federal, state and local authorities must be consulted for currently approved uses., Chlorinating agent, disinfectant, industrial deodorant. In water treatment. Active ingredient of powder laundry bleaches... ., Intermediate for amino acids, drugs, insecticides. Stabilizer for vinyl chloride polymers. Polymerization catalyst., Dichloro-5, 5-dimethylhydantoin was once used as a chemical warfare decontaminating agent., Industry Uses: Intermediate, Consumer Uses: Intermediate, Household Products: Information on 17 consumer products that contain 1, 3-Dichloro-5, 5-dimethylhydantoin in the following categories is provided:, • Auto Products, • Inside the Home, • Landscaping, Yard, Methods of Manufacturing: Prepared by passing chlorine through an aqueous solution of 5, 5-dimethylhydantoin: ... . Purification by dissolving in concentrated H2SO4 and diluting with ice-water: Lorenz, US patent 2, 828, 308 (1958 to Purex)., Formulations, Preparations: Grades: Technical, U.S. Production: 2023: 37, 830 lb, 2022: 38, 400 lb, 2021: 62, 670 lb, 2020: 50, 820 lb, This chemical is listed as a High Production Volume (HPV) (65FR81686). Chemicals listed as HPV were produced in or imported into the U.S. in >1 million pounds in 1990 and, or 1994. The HPV list is based on the 1990 Inventory Update Rule. (IUR) (40 CFR part 710 subpart B, 51FR21438)., (1986) >500 thousand-1 million pounds, (1990) >500 thousand-1 million pounds, (1994) >1 million-10 million pounds, For more U.S. Production (Complete) data for 1, 3-DICHLORO-5, 5-DIMETHYLHYDANTOIN (6 total), please visit the HSDB record page., General Manufacturing Information: Pesticide, Fertilizer, and Other Agricultural Chemical Manufacturing, 2, 4-Imidazolidinedione, 1, 5-dimethyl-: ACTIVE, ..., Contains, a minimum of 66% "available chlorine" by weight., ... A maximal level of 10 ppm has been recommended for its use as a sanitizing agent in swimming pools. This limit is based on accidental swallowing of 100 to 200 mL of pool water., Agent for keeping cut flowers fresh in vases., Serves as a mild bleach by slowly releasing active chlorine..
1,3-Dichloro-5,5-dimethylhydantoin is a carbon-based organic compound with CAS registry number 118-52-5 and molecular formula C5H6Cl2N2O2 (molecular weight 197.02), belonging to the organic chemicals segment of chemical raw materials.
CAS number: 118-52-5
Its molecular formula C5H6Cl2N2O2 comprises 5 C, 6 H, 2 Cl, 2 N, 2 O atoms.
Also known as: 1,3-Dichloro-5,5-dimethylhydantoin · 1,3-二氯-5,5-二甲基乙内酰脲
Category: organic chemicals
The CAS registry number of 1,3-Dichloro-5,5-dimethylhydantoin is 118-52-5.
Molecular formula C5H6Cl2N2O2, molecular weight 197.02.
It is also registered under: 1,3-Dichloro-5,5-dimethylhydantoin, 1,3-二氯-5,5-二甲基乙内酰脲.
Recorded applications: Uses: Used as a chlorinating agent, for organic synthesis, and to stabilize vinyl chloride polymers, [ACGIH] Used as a disinfectant and industrial deodorant, used in water treatment and laundry bleaches, [HSDB], Using Disinfectants or Biocides [Category: Clean], Sewer and Wastewater Treatment [Category: Industry], Plastic Composites Manufacturing [Category: Industry], For 1, 3-dichloro-5, 5-dimethylhydantoin (USEPA, OPP Pesticide Code: 028501) ACTIVE products with label matches., SRP: Registered for use in the U.S. but approved pesticide uses may change periodically and so federal, state and local authorities must be consulted for currently approved uses., Chlorinating agent, disinfectant, industrial deodorant. In water treatment. Active ingredient of powder laundry bleaches... ., Intermediate for amino acids, drugs, insecticides. Stabilizer for vinyl chloride polymers. Polymerization catalyst., Dichloro-5, 5-dimethylhydantoin was once used as a chemical warfare decontaminating agent., Industry Uses: Intermediate, Consumer Uses: Intermediate, Household Products: Information on 17 consumer products that contain 1, 3-Dichloro-5, 5-dimethylhydantoin in the following categories is provided:, • Auto Products, • Inside the Home, • Landscaping, Yard, Methods of Manufacturing: Prepared by passing chlorine through an aqueous solution of 5, 5-dimethylhydantoin: ... . Purification by dissolving in concentrated H2SO4 and diluting with ice-water: Lorenz, US patent 2, 828, 308 (1958 to Purex)., Formulations, Preparations: Grades: Technical, U.S. Production: 2023: 37, 830 lb, 2022: 38, 400 lb, 2021: 62, 670 lb, 2020: 50, 820 lb, This chemical is listed as a High Production Volume (HPV) (65FR81686). Chemicals listed as HPV were produced in or imported into the U.S. in >1 million pounds in 1990 and, or 1994. The HPV list is based on the 1990 Inventory Update Rule. (IUR) (40 CFR part 710 subpart B, 51FR21438)., (1986) >500 thousand-1 million pounds, (1990) >500 thousand-1 million pounds, (1994) >1 million-10 million pounds, For more U.S. Production (Complete) data for 1, 3-DICHLORO-5, 5-DIMETHYLHYDANTOIN (6 total), please visit the HSDB record page., General Manufacturing Information: Pesticide, Fertilizer, and Other Agricultural Chemical Manufacturing, 2, 4-Imidazolidinedione, 1, 5-dimethyl-: ACTIVE, ..., Contains, a minimum of 66% "available chlorine" by weight., ... A maximal level of 10 ppm has been recommended for its use as a sanitizing agent in swimming pools. This limit is based on accidental swallowing of 100 to 200 mL of pool water., Agent for keeping cut flowers fresh in vases., Serves as a mild bleach by slowly releasing active chlorine..
Category: Organic Chemicals.
Independent reference data for 1,3-Dichloro-5,5-dimethylhydantoin (CAS 118-52-5), compiled from public chemistry databases.
| CAS Registry Number | 118-52-5 |
|---|---|
| PubChem CID | 8360 |
| Molecular formula | C5H6Cl2N2O2 |
| IUPAC name | 1,3-dichloro-5,5-dimethylimidazolidine-2,4-dione |
| UNII (FDA) | 70H8B2WWTU |
| Molecular Weight | 197.02 |
|---|---|
| XLogP3 | 1.1 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 2 |
| Rotatable Bond Count | 0 |
| Exact Mass | 195.9806328 |
| Monoisotopic Mass | 195.9806328 |
| Topological Polar Surface Area | 40.6 |
| Heavy Atom Count | 11 |
| Melting Point | 270 °F (NTP, 1992) |
|---|---|
| Melting Point | 132 °C |
| Melting Point | 270 °F |
| Flash Point | 346 °F (NIOSH, 2024) |
| Flash Point | 346 °F |
| Solubility | 0.2% |
| Density | 1.5 at 20 °C/20 °C |
| Density | 1.5 |
| Vapor Density | 6.8 |
| Vapor Pressure | 0.000024 [mmHg] |
1,3-DICHLORO-5,5-DIMETHYLHYDANTOIN; 118-52-5; Dantoin; Dactin; Halane; Daktin; Dichlorantin; Omchlor; Hydan; Hydantoin, dichlorodimethyl-; Hydan (antiseptic); NCI-C03054; 1,3-Dichloro-5,5-dimethyl-2,4-imidazolidinedione; Dwuchlorantyny; 2,4-Imidazolidinedione, 1,3-dichloro-5,5-dimethyl-; DCDMH
| Reported hazard statements | H272 (53.1%), H302 (100%), H314 (61.5%), H315 (38.5%), H317 (20.8%), H319 (36.9%), H334 (31.5%), H335 (38.5%) |
|---|
H272 (53.1%): May intensify fire; oxidizer [Danger Oxidizing liquids; Oxidizing solids]
H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]
1,3-Dichloro-5,5-dimethylhydantoin · CAS 118-52-5 · C5H6Cl2N2O2. UNII 70H8B2WWTU. Melting Point: 270 °F (NTP, 1992); Melting Point: 132 °C; Melting Point: 270 °F.
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: 1,3-二氯-5,5-二甲基乙内酰脲