ChemicalBook > CAS DataBase List > 3-Aminofurazan-4-carboxylic acid

3-Aminofurazan-4-carboxylic acid

Uses

Product Name: 3-Aminofurazan-4-carboxylic acid
CAS No.: 78350-50-2
Chemical Name: 3-Aminofurazan-4-carboxylic acid
Synonyms: TIMTEC-BB SBB000060;3-amino-4-carboxyfuran;3-amino-4-carboxyfurazan;3-AMINOFURAZAN-4-CARBOXYLIC ACID;4-AMINO-3-FURAZANECARBOXYLIC ACID;5-AMINOFURAZANE-4-CARBOXYLIC ACID;4-AMINO-FURAZAN-3-CARBOXYLIC ACID;4-Amino-1,2,5-oxadiazole-3-carboxylicaci;4-Amino-1,2,5-oxadiazol-3-carboxylic acid;4-AMINO-1,2,5-OXADIAZOLE-3-CARBOXYLIC ACID
CBNumber: CB7441817
Molecular Formula: C3H3N3O3
Formula Weight: 129.07
MOL File: 78350-50-2.mol

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3-Aminofurazan-4-carboxylic acid Property

Melting point:: 216-217 °C(Solv: water (7732-18-5))
Boiling point:: 385.4±52.0 °C(Predicted)
Density: 1.756±0.06 g/cm3(Predicted)
storage temp.: Keep in dark place,Inert atmosphere,Store in freezer, under -20°C
pka: 3.40±0.10(Predicted)
Appearance: Light brown to off-white Solid
InChI: InChI=1S/C3H3N3O3/c4-2-1(3(7)8)5-9-6-2/h(H2,4,6)(H,7,8)
InChIKey: YOXIXLVJYMCCIB-UHFFFAOYSA-N
SMILES: O1N=C(N)C(C(O)=O)=N1

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Safety

Hazard Codes: Xi
HazardClass: IRRITANT
HS Code: 2934999090

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P280Wear protective gloves/protective clothing/eye protection/face protection.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

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N-Bromosuccinimide Price

TRC

Product number: B419178
Product name: 4-Amino-1,2,5-oxadiazole-3-carboxylicAcid
Packaging: 50mg
Price: $60
Updated: 2021/12/16

Biosynth Carbosynth

Product number: FA57184
Product name: 3-Aminofurazan-4-carboxylic acid
Packaging: 2g
Price: $60
Updated: 2021/12/16

Matrix Scientific

Product number: 007819
Product name: 4-Amino-1,2,5-oxadiazole-3-carboxylic acid
Packaging: 5g
Price: $72
Updated: 2021/12/16

Matrix Scientific

Product number: 007819
Product name: 4-Amino-1,2,5-oxadiazole-3-carboxylic acid
Packaging: 1g
Price: $25
Updated: 2021/12/16

AK Scientific

Product number: A920
Product name: 4-Amino-1,2,5-oxadiazole-3-carboxylicacid
Packaging: 1g
Price: $38
Updated: 2021/12/16

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3-Aminofurazan-4-carboxylic acid Chemical Properties,Usage,Production

Uses

3-Aminofuran-4-carboxylic acid is a carboxylic acid organic compound and an important intermediate in the synthesis of compounds such as furazan, oxyfuran, and pyrrolifuran.

Synthesis

105-56-6

78350-50-2

To a stirred suspension of ethyl cyanoacetate (28.3 g, 0.25 mol, 1.0 eq.) and sodium nitrite (17.3 g, 0.25 mol, 1.0 eq.) in a mixture of ethanol (17 mL) and water (200 mL) was added 85% phosphoric acid (10 mL) slowly and dropwise at 10-15°C with continuous stirring for 12 hours. Upon completion of the reaction, the reaction mixture was treated sequentially with sodium hydroxide (4 x 10 g, 1 mol, 4.0 eq.) and potassium hydroxide (2 x 14 g, 0.5 mol, 2.0 eq.). Hydroxylamine hydrochloride (NH2OH-HCl, 69.5 g, 1.0 mol, 4.0 eq.) was slowly added to the resulting solution at room temperature, followed by heating the reaction mixture to 95 °C and stirring for 2 hours. After completion of the reaction, it was cooled to room temperature and quenched with concentrated hydrochloric acid. The mixture was cooled to 0 °C and allowed to stand for 12 h to precipitate, the precipitate was collected by filtration and dried. The filtrate was extracted with ether (3 x 30 mL), the organic phases were combined and concentrated under reduced pressure. The concentrated residue was combined with the previously obtained precipitate and recrystallized from hot water to afford the target compound 4-amino-1,2,5-oxadiazole-3-carboxylic acid (21.3 g, 0.165 mol, 66% yield) as a white solid. The product was characterized by 1H-NMR (300 MHz, DMSO-d6), 13C-NMR (75 MHz, DMSO-d6) and HRMS (ESI), and the data were consistent with the expected structure.

References

[1] Patent: EP3305783, 2018, A1. Location in patent: Paragraph 0092; 0093

3-Aminofurazan-4-carboxylic acid Preparation Products And Raw materials

Raw materials

Preparation Products

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View Lastest Price from 3-Aminofurazan-4-carboxylic acid manufacturers

ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD

Product: 3-Aminofurazan-4-carboxylic acid 78350-50-2
Price: US $1.60-6.60/kg
Min. Order: 1kg
Purity: 99%
Supply Ability: 100kg
Release date: 2025-06-19

Career Henan Chemical Co

Product: 3-Aminofurazan-4-carboxylic acid 78350-50-2
Price: US $1.00/KG
Min. Order: 1KG
Purity: 98%
Supply Ability: 1kg;10kg;100kg
Release date: 2019-08-29

78350-50-2, 3-Aminofurazan-4-carboxylic acidRelated Search:

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JR-8481, 3-Aminofurazan-4-carboxylic acid, 97%

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3-amino-4-carboxyfurazan

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3-Aminofurazan-4-carboxylic acid USP/EP/BP

3-amino-4-carboxyfuran

4-Amino-1,2,5-oxadiazol-3-carboxylic acid

78350-50-2

Carboxylic Acids

Oxadiazoles & Thiadiazoles

Carboxylic Acids

Oxadiazoles & Thiadiazoles

CARBOXYLICACID

AMINOACID