1-ACETYL-3-THIOSEMICARBAZIDE
- Product Name
- 1-ACETYL-3-THIOSEMICARBAZIDE
- CAS No.
- 2302-88-7
- Chemical Name
- 1-ACETYL-3-THIOSEMICARBAZIDE
- Synonyms
- acetamidothiourea;ACETYLTHIOSEMICARBAZIDE;1-ACETYLTHIOSEMICARBAZIDE;1-ACETYL-3-THIOSEMICARBAZIDE;1-Acetylthiosemicarbazide,95%;2-acetylhydrazinecarbothioaMide;N-{[Thio(carbonoimidyl)]amino}acetamide;Acetic acid, 2-(aminothioxomethyl)hydrazide;Acetic acid N'-(aminothioxomethyl) hydrazide
- CBNumber
- CB5400203
- Molecular Formula
- C3H7N3OS
- Formula Weight
- 133.17
- MOL File
- 2302-88-7.mol
1-ACETYL-3-THIOSEMICARBAZIDE Property
- Melting point:
- 165-170 °C
- Density
- 1.280 (estimate)
- refractive index
- 1.7490 (estimate)
- storage temp.
- 2-8°C(protect from light)
- solubility
- DMSO (Sparingly), Methanol (Sparingly)
- pka
- 10.30±0.70(Predicted)
- form
- solid
- Appearance
- Off-white to light yellow Solid
- Water Solubility
- Partly soluble in water.
- Stability:
- Hygroscopic
- CAS DataBase Reference
- 2302-88-7(CAS DataBase Reference)
Safety
- Hazard Codes
- T
- Risk Statements
- 25-36/37/38
- Safety Statements
- 24/25-45
- RIDADR
- 2811
- HazardClass
- 6.1
- PackingGroup
- III
- HS Code
- 29309099
N-Bromosuccinimide Price
- Product number
- B642518
- Product name
- N-{[Thio(carbonoimidyl)]amino}acetamide
- Packaging
- 1g
- Price
- $50
- Updated
- 2021/12/16
- Product number
- FA160492
- Product name
- 1-Acetyl-3-thiosemicarbazide
- Packaging
- 10g
- Price
- $80
- Updated
- 2021/12/16
- Product number
- FA160492
- Product name
- 1-Acetyl-3-thiosemicarbazide
- Packaging
- 25g
- Price
- $150
- Updated
- 2021/12/16
- Product number
- FA160492
- Product name
- 1-Acetyl-3-thiosemicarbazide
- Packaging
- 50g
- Price
- $200
- Updated
- 2021/12/16
- Product number
- 133062
- Product name
- 2-Acetylhydrazinecarbothioamide
- Purity
- 97%
- Packaging
- 25g
- Price
- $233
- Updated
- 2021/12/16
1-ACETYL-3-THIOSEMICARBAZIDE Chemical Properties,Usage,Production
Chemical Properties
white to slightly beige crystalline powder
Uses
1-Acetyl-3-thiosemicarbazide is applied in pharmaceutical industry as an intermediate.
Synthesis
79-19-6
75-36-5
2302-88-7
General procedure for the synthesis of acetylthiosemicarbazone from aminothiourea and acetyl chloride: preparation of the intermediate 2-acetylcarbazinethioformamide; Acetyl chloride (8.64 g, 0.11 mol) was added slowly and dropwise to an anhydrous tetrahydrofuran (THF, 100 mL) solution of aminothiourea (9.10 g, 0.10 mol) at 0 °C. The reaction mixture was heated to reflux and maintained for 3 hours. Upon completion of the reaction, it was cooled to room temperature and the reaction was quenched by the addition of water (100 mL) followed by extraction with ethyl acetate (3 x 100 mL). The organic phases were combined, washed with saturated saline, dried over anhydrous sodium sulfate, and concentrated under reduced pressure to remove the solvent. The crude product was purified by column chromatography (eluent: methanol/dichloromethane=1/1, v/v) to afford the target compound acetylthiosemicarbazone (8.64 g, 65% yield). The results of mass spectrometry (electrospray ionization, ESI) analysis: m/z calculated value C3H7N3OS [M+H]+ 133.03, measured value 134.0 (MH+).
References
[1] Patent: WO2009/87220, 2009, A1. Location in patent: Page/Page column 57
[2] Yakugaku Zasshi, 1952, vol. 72, p. 376
[3] Chem.Abstr., 1953, p. 3856
[4] Synthetic Communications, 2004, vol. 34, # 22, p. 4189 - 4198
[5] Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, 2010, vol. 76, # 5, p. 531 - 536
1-ACETYL-3-THIOSEMICARBAZIDE Preparation Products And Raw materials
Raw materials
Preparation Products
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