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100643-25-2 Usage

General Description

4-Pyrimidinol, 2-amino- (9CI) is a chemical compound with the molecular formula C4H5N3O. It is a derivative of pyrimidine, containing an amino group at the 2-position. 4-Pyrimidinol, 2-amino- (9CI) is commonly used in the synthesis of pharmaceuticals and agrochemicals due to its potential as a building block in organic synthesis. It is also known for its role in the production of heterocyclic compounds, which are important structural motifs in a variety of natural and synthetic products. Additionally, 4-Pyrimidinol, 2-amino- (9CI) has been studied for its potential biological activities, including its antimicrobial and antitumor properties. Overall, this compound has significant industrial and pharmaceutical applications, making it a valuable chemical in various fields of research and development.

Check Digit Verification of cas no

The CAS Registry Mumber 100643-25-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,0,6,4 and 3 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 100643-25:
72 % 10 = 2
So 100643-25-2 is a valid CAS Registry Number.



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


1.1 GHS Product identifier

Product name 2-Aminopyrimidin-4-ol

1.2 Other means of identification

Product number -
Other names 2-Amino-4-hydroxypyrimidine

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:100643-25-2 SDS

100643-25-2Upstream product

100643-25-2Relevant articles and documents

Combined matrix-isolation FT-IR and ab initio 6-31++G** study of H-bonded complexes between water and molecules modelling cytosine or isocytosine

Smets, Johan,Adamovicz, Ludwik,Maes, Guido

, p. 113 - 130 (1994)

A step-by-step experimental and ab initio SCF/6-31++G** procedure is described for the interpretation of the matrix FT-IR spectra of H-bonded complexes of cytosine or isocytosine with water.The method involves a detailed study of several compounds, each modelling one or a few cytosine sites and/or tautomers in order of increasing complexity.Results are presented for tautomerization processes in 2-OH-pyridine, 4-OH-pyrimidine and isocytosine, and for H-bonded complexes of water with pyrimidine, 4-OH-pyridine and 4-NH2-pyridine.The whole series of obtained results has allowed the setting up of a large-scale vibration correlation diagram for water complexed with N- and O-bases.It also allows some new, important conclusions to be drawn about the major problem of scaling ab initio predicted frequencies for anharmonic proton-donor vibrational modes.

A novel synthesis of pyrimidines. II. Cyclization of alkyl N cyano cyanoacetimidates with hydrogen halides


, p. 507 - 514 (2007/10/04)


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