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16421-52-6

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16421-52-6 Usage

General Description

1,4-dihydro-5H-tetrazol-5-one is a compound with the chemical formula C2H3N5O. It is a white to off-white crystalline powder that is slightly soluble in water. This chemical is used as a pharmaceutical intermediate and in the manufacture of various drugs. It is also used as a reagent in organic synthesis and as a precursor for the preparation of other tetrazole derivatives. Additionally, 1,4-dihydro-5H-tetrazol-5-one has potential applications in the development of explosives and propellants due to its energetic properties. However, it is important to handle this compound with care as it can be hazardous if not used properly.

Check Digit Verification of cas no

The CAS Registry Mumber 16421-52-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,4,2 and 1 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 16421-52:
(7*1)+(6*6)+(5*4)+(4*2)+(3*1)+(2*5)+(1*2)=86
86 % 10 = 6
So 16421-52-6 is a valid CAS Registry Number.
InChI:InChI=1/CN4O/c6-1-2-4-5-3-1

16421-52-6SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017

1.Identification

1.1 GHS Product identifier

Product name 1,2-dihydrotetrazol-5-one

1.2 Other means of identification

Product number -
Other names 1,4-dihydro-tetrazolone

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:16421-52-6 SDS

16421-52-6Relevant articles and documents

Alkali and alkaline earth metal salts of tetrazolone: Structurally interesting and excellently thermostable

He, Piao,Wu, Le,Wu, Jin-Ting,Yin, Xin,Gozin, Michael,Zhang, Jian-Guo

, p. 8422 - 8430 (2017/07/12)

Tetrazolone (5-oxotetrazole) was synthesized by a moderate strategy through three steps (addition, cyclization and catalytic hydrogenation) avoiding the unstable intermediate diazonium, as reported during the previous preparation. Alkali and alkaline earth metal salts with lithium (1), sodium (2), potassium (3), rubidium (4) caesium (5), magnesium (6), calcium (7), strontium (8) and barium (9) were prepared and fully characterized using elemental analysis, IR and NMR spectroscopy, DSC and TG analysis. All metal salts were characterized via single-crystal X-ray diffraction. They crystallize in common space groups with high densities ranging from 1.479 (1) to 3.060 g cm-3 (5). Furthermore, the crystal structures of 7, 8 and 9 reveal interesting porous energetic coordination polymers with strong hydrogen bond interactions. All new salts have good thermal stabilities with decomposition temperature between 215.0 °C (4) and 328.2 °C (7), significantly higher than that of the reported nitrogen-rich salt neutral tetrazolone. The sensitivities towards impact and friction were tested using standard methods, and all the tetrazolone-based compounds investigated can be classified into insensitive. The flame test of these metal salts supports their potential use as perchlorate-free pyrotechnics or eco-friendly insensitive energetic materials.

Syntheses and Structure Assignments of Six Azolinone Ribonucleosides

Haines, David R.,Leonard, Nelson J.,Wiemer, David F.

, p. 474 - 482 (2007/10/02)

N-Ribosidation of a series of azolinones was achieved via silylation and SnCl4 catalysis.N-Ribosidation of 4-imidazolin-2-one gave 1-β-D-ribofuranosyl-4-imidazolin-2-one; of 1,2,4-triazolin-3-one gave 2- and 4-β-D-ribofuranosyl-1,2,4-triazolin-3-one, and 2,4-di-β-D-ribofuranosyl-1,2,4-triazolin-3-one; and of 2-tetrazolin-5-one gave 1-β-D-ribofuranosyl-2-tetrazolin-5-one and 1,4-di-β-D-ribofuranosyl-2-tetrazolin-5-one.Structure assignments were based on NMR and mass spectra, microanalytical data, and interconversions.The triazolinone monoriboside isomer structures were differentiated by 13C NMR long-range coupling patterns, and the assignments were confirmed by X-ray crystallography.New syntheses were developed for several of the ribonucleosides by fashioning the azolinone rings from 2,3,5-tri-O-benzoylribofuranosyl isocyanate.

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