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2H-Pyrazolo[4,3-d]pyrimidine, also known as 2H-Pyrazolo[4,3-d]pyrimidin-5-amine, is a heterocyclic compound with the chemical formula C5H4N4. It is a derivative of pyrazolo[4,3-d]pyrimidine, which is a fused ring system consisting of a pyrazole and a pyrimidine. 2H-Pyrazolo[4,3-d]pyrimidine (8CI,9CI) is of interest in medicinal chemistry and drug design due to its potential as a building block for the synthesis of various biologically active molecules. It can be used as a precursor in the preparation of pyrazolo[4,3-d]pyrimidine-based compounds, which have been found to possess a range of pharmacological properties, including antiviral, anticancer, and anti-inflammatory activities. The compound is typically synthesized through various chemical reactions and can be further modified to introduce different functional groups, enhancing its potential applications in drug discovery and development.

272-55-9

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Basic information
1. Product Name: 2H-Pyrazolo[4,3-d]pyrimidine (8CI,9CI)
2. Synonyms: 2H-Pyrazolo[4,3-d]pyrimidine (8CI,9CI);2H-Pyrazolo[4,3-d]pyriMidine
3. CAS NO:272-55-9
4. Molecular Formula: C5H4N4
5. Molecular Weight: 120.11206
6. EINECS: N/A
7. Product Categories: PYRIMIDINE
8. Mol File: 272-55-9.mol
Chemical Properties
1. Melting Point: N/A
2. Boiling Point: N/A
3. Flash Point: N/A
4. Appearance: /
5. Density: N/A
6. Refractive Index: N/A
7. Storage Temp.: N/A
8. Solubility: N/A
9. CAS DataBase Reference: 2H-Pyrazolo[4,3-d]pyrimidine (8CI,9CI)(CAS DataBase Reference)
10. NIST Chemistry Reference: 2H-Pyrazolo[4,3-d]pyrimidine (8CI,9CI)(272-55-9)
11. EPA Substance Registry System: 2H-Pyrazolo[4,3-d]pyrimidine (8CI,9CI)(272-55-9)
Safety Data
1. Hazard Codes: N/A
2. Statements: N/A
3. Safety Statements: N/A
4. WGK Germany:
5. RTECS:
6. HazardClass: N/A
7. PackingGroup: N/A
8. Hazardous Substances Data: 272-55-9(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 272-55-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 2,7 and 2 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 272-55:
(5*2)+(4*7)+(3*2)+(2*5)+(1*5)=59
59 % 10 = 9
So 272-55-9 is a valid CAS Registry Number.

272-55-9SDS

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	1H-pyrazolo[4,3-d]pyrimidine

1.2 Other means of identification

Product number	-
Other names	4,6-Diaza-2H-indazole

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).

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