4005-51-0

Basic information

• Product Name: 2-Amino-1,3,4-thiadiazole
• Synonyms: 2-Aminothiadiazole;4-thiadiazole,2-amino-3;aminothiadazole;Aminothiadiazole;FDA 0084;NSC 4728;nsc4728;TF 128
• CAS NO: 4005-51-0
• Molecular Formula: C₂H₃N₃S
• Molecular Weight: 101.13
• EINECS: 223-657-7
• Product Categories: VARIOUSAMINE;Amines;Oxadiazoles & Thiadiazoles;Thiazole;API intermediates;Oxadiazoles & Thiadiazoles;Aromatic;Heterocycles;Intermediates & Fine Chemicals;Pharmaceuticals;Sulfur & Selenium Compounds
• Mol File: 4005-51-0.mol
• Article Data: 27

Chemical Properties

• Melting Point: 181-182 °C
• Boiling Point: 238.9 °C at 760 mmHg
• Flash Point: 98.3 °C
• Appearance: White to light yellow/Crystals or Crystalline Powder
• Density: 1.385 (estimate)
• Refractive Index: 1.5800 (estimate)
• Storage Temp.: Refrigerator
• Solubility: water: soluble25mg/mL, clear, colorless
• PKA: pKa 3.2 (Uncertain)
• Water Solubility: It is soluble in water, hot methanol- very faint turbidity.
• BRN: 107135
• CAS DataBase Reference: 2-Amino-1,3,4-thiadiazole(CAS DataBase Reference)
• NIST Chemistry Reference: 2-Amino-1,3,4-thiadiazole(4005-51-0)
• EPA Substance Registry System: 2-Amino-1,3,4-thiadiazole(4005-51-0)

Safety Data

• Hazard Codes: Xn,Xi
• Statements: 68-63-36/37/38-20/21/22-22
• Safety Statements: 36/37/39-26-36
• RIDADR: 2811
• WGK Germany: 3
• RTECS: XI3000000
• HazardClass: 6.1
• PackingGroup: III
• Hazardous Substances Data: 4005-51-0(Hazardous Substances Data)

Usage

Chemical Properties

white to light yellow crystal powde

Uses

Different sources of media describe the Uses of 4005-51-0 differently. You can refer to the following data:
1. A thiadiazole derivative with fungacidal properties. An antitumor agent.
2. 2-Amino-1,3,4-thiadiazole, is used as an intermediate for ceftraoline.

General Description

2-Amino-1,3,4-thiadiazole (donor) form charge transfer complexes with 2,3-dichloro-5,6-dicyano-p-benzoquinone, p-chloranil, o-chloranil, p-bromanil and chloranilic acid (acceptors). Effects of 2-amino-1,3,4-thiadiazole [aminothiadiazole (NSC 4728)] on purine and pyrimidine ribonucleotide pools of L1210 ascites cells in vivo has been reported.

Safety Profile

Poison by subcutaneous andintraperitoneal routes. An experimental teratogen. Otherexperimental reproductive effects. When heated todecomposition it emits very toxic fumes of NOx and SOx.

InChI:InChI=1/C2H3N3S/c3-2-5-4-1-6-2/h1H,(H2,3,5)

Upstream product

• 115271-89-1 1-(4-methoxy-anilinomethylene)-thiosemicarbazide 
• 79-19-6 thiosemicarbazide 
• 122-51-0 orthoformic acid triethyl ester 
• 2302-84-3 1-formylthiosemicarbazide 
• 34005-36-2 carboxaldehyde semicarbazide 
• 64-18-6 formic acid 
• 56951-58-7 2-amino-5-hydroxymethyl-1,3,4-thiadiazole 
• 108-33-8 5-methyl-1,3,4-thiadiazol-2-amine 
• 26334-28-1 Thiosemicarbazono-methan 
• 134224-39-8 5-Imino-6H-<1,3,4>thiadiazolo<3,2-a>pyrimidin-7-one 
• 26861-95-0 N-(1,3,4-thiadiazol-2-yl)benzamide 
• 2349-67-9 2-Amino-5-mercapto-1,3,4-thiadiazole 
• 56406-78-1 (5-amino-[1,3,4]thiadiazol-2-yl)-phenyl-methanone 
• 75-36-5 acetyl chloride 

Downstream Products

• 26907-49-3 N-(1,3,4-thiadiazol-2-yl)benzene sulfonamide 
• 3179-31-5 2,3-dihydro-1H-1,2,4-triazole-3-thione 
• 146374-13-2 3-nitro-benzenesulfonic acid-[1,3,4]thiadiazol-2-ylamide 
• 16806-29-4 Sulfathiadiazole 
• 6880-66-6 N-(4-(N-(1,3,4-thiadiazol-2-yl)sulfamoyl)phenyl)acetamide 
• 52819-57-5 2-chloro-1,3,4-thiadiazole 
• 26947-66-0 2-Nitramino-1,3,4-thiadiazol 
• 91260-06-9 2-(2-tienil)-3-<2-(1,3,4-tiadiazolil)>-4-tiazolidinone 
• 91260-07-0 2-(3-tienil)-3-<2-(1,3,4-tiadiazolil)>-4-tiazolidinone 
• 26907-41-5 [1,3,4]thiadiazol-5-yl-carbamic acid phenyl ester 
• 851681-89-5 Oxindole 
• 313516-61-9 2-chloro-5-nitro-N-(1,3,4-thiadiazol-2-yl)benzamide 
• 198893-80-0 Naphthalene-2-carboxylic acid [1,3,4]thiadiazol-2-yl amide 
• 18686-82-3 2-mercapto-1,3,4-thiadiazole 

Relevant articles and documents

Antitumor activity of 2-acylamino-1,3,4-thiadiazoles and related compounds

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Synthesis of Emodin Amide Derivatives Containing 1,3,4-Thiadiazole and Their Inhibitory Activity on Vibrio harveyi

A series of new 1,3,4-thiadiazole Emodin amide derivatives were synthesized through the connection of 5-substituted-1,3,4-thiadiazole-2-amine and Emodin carboxylic acids which were obtained by a two-step procedure starting from Emodin. Vibrio harveyi inhibition activities of the newly prepared compounds were evaluated. Results revealed that all compounds showed different degrees of inhibition on V. harveyi. Among them, compound 7a showed the best V. harveyi inhibition effect and the minimum inhibitory concentration (MIC) was 0.0625 mg/mL.

Preparation of 1,3,4-oxadiazoles and 1,3,4-thiadiazoles via chemoselective сyclocondensation of electrophilically activated nitroalkanes to (thio)semicarbazides or thiohydrazides

[Figure not available: see fulltext.] Unusual reaction proceeding via the electrophilic activation of nitroalkanes in the presence of polyphosphoric acid has been discovered. Subsequent nucleophilic attack with semicarbazides or thiosemicarbazides allows