3D Mol Similar

THIOUREA DIOXIDE

: Iupac Name：amino(imino)methanesulfinic acid; CAS No.: 4189-44-0; Molecular Weight：108.12000; Modify Date.: 2022-11-29 12:36; Introduction:
THIOUREA DIOXIDE, with the chemical formula CH4N2O2S and CAS registry number 4189-44-0, is a compound known for its versatile applications in various industries. This white crystalline solid, also referred to as Formamidine sulfinic acid, is characterized by its thiourea and dioxide functional groups. It is commonly used as a reducing agent in textile, paper, and leather industries, as well as in photographic processes. THIOUREA DIOXIDE is also utilized in hair dyeing and bleaching products due to its ability to remove unwanted color. Additionally, it finds applications in organic synthesis as a source of sulfur and as a stabilizer for hydrogen peroxide. With its wide range of uses, THIOUREA DIOXIDE plays a crucial role in numerous chemical processes and industries.
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1. Names and Identifiers

: 1.1 Name; THIOUREA DIOXIDE; 1.2 Synonyms; 1-Sulfonylmethanediamine Brn 1902754 Einecs 224-065-1 Methanediamine, 1-sulfonyl- nitromethanethioamide Thiourea, S,S-dioxide Thiourea,S,S-dioxide(9CI) Urea, thio-, 2,2-dioxide Urea,thio-,2,2-dioxide; View all

1.3 CAS No.: 4189-44-0

1.4 EINECS(EC#): 224-065-1; 217-157-8

1.5 Molecular Formula: CH4N2O2S (isomer)

1.6 Inchi: InChI=1S/CH4N2O2S/c2-1(3)6(4)5/h(H3,2,3)(H,4,5)

1.7 InChIkey: FYOWZTWVYZOZSI-UHFFFAOYSA-N

1.8 Canonical Smiles: NC(=N)S(O)=O

1.9 Isomers Smiles: O=S(=O)=C(N)N

2. Properties

2.1 Density: 2.25 g/cm3

2.1 Melting point: 126 °C

2.1 Boiling point: 355.3 °C at 760 mmHg

2.1 Refractive index: 1.805

2.1 Flash Point: 168.7 °C

2.1 Precise Quality: 107.99900

2.1 PSA: 106.38000

2.1 logP: 0.35170

2.1 Solubility: soluble (max 27 g/l)

2.2 Appearance: white powder

2.3 PH: pH(10g/l, 25℃) : 3.5～5.5

2.4 Water Solubility: soluble (max 27 g/l)

2.5 Stability: Stable at room temperature in closed containers under normal storage and handling conditions.

2.6 StorageTemp: 2-8°C

3. Safety and Handling

3.1 Hazard Codes: Xn

3.1 Risk Statements: R22; R36/37/38

3.1 Safety Statements: S22-S36/37

3.1 Packing Group: II

3.1 Hazard Class: 4.2

3.1 RIDADR: UN 3341

3.1 WGK Germany: 1

3.1 RTECS: YT5250000

3.1 Sensitive: Moisture Sensitive

4. MSDS

2.Hazard identification

2.1 Classification of the substance or mixture

Self- heating substances and mixtures, Category 2

Acute toxicity - Oral, Category 4

Eye irritation, Category 2

2.2 GHS label elements, including precautionary statements

Pictogram(s)
Signal word	Warning
Hazard statement(s)	H252 Self-heating in large quantities; may catch fire H302 Harmful if swallowed H319 Causes serious eye irritation
Precautionary statement(s)
Prevention	P235 Keep cool. P280 Wear protective gloves/protective clothing/eye protection/face protection. P264 Wash ... thoroughly after handling. P270 Do not eat, drink or smoke when using this product.
Response	P301+P312 IF SWALLOWED: Call a POISON CENTER/doctor/…if you feel unwell. P330 Rinse mouth. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P337+P313 If eye irritation persists: Get medical advice/attention.
Storage	P407 Maintain air gap between stacks or pallets. P413 Store bulk masses greater than … kg/…lbs at temperatures not exceeding …°C/…°F. P420 Store separately.
Disposal	P501 Dispose of contents/container to ...

2.3 Other hazards which do not result in classification

none

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5. NMR Spectrum

13C NMR : Predict

1H NMR : Predict

6. Synthesis Route

4189-44-0Total: 1 Synthesis Route

17356-08-0

4189-44-0 56 Suppliers

Literatures:
Verma, Sanny; Singh, Raghuvir; Tripathi, Deependra; Gupta, Piyush; Bahuguna, Gajendra Mohan; Jain, Suman L. RSC Advances, 2013 , vol. 3, # 13 p. 4184 - 4188
Yield: ~79%

7. Precursor and Product

precursor:

17356-08-0

product :