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Guanine Powder Raw Pharmaceutical Intermediates

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Buy Guanine Powder Raw Pharmaceutical Intermediates Online CAS 73-40-5

 

Guanine Specification

Product Name: Guanine
CAS: 73-40-5
Standard: Enterprise Standard
Level: Pharmaceutical Grade
Content: 99%
Appearance: white powder
Packing: 25KG/cardboard drum
Ingredients: 2-Amino-6-Hydroxypurine
Physicochemical properties: White crystalline or amorphous powder, soluble in acid and alkali, slightly soluble in ethanol, ethyl ether, insoluble in water.
Category: Pharmaceutical Raw Materials
Industry: Pharmaceuticals
Field: Intermediates
Deferred products: Aciclovir Thioguanine, ring-opened guanine
Application: Used as an intermediate for antiviral drugs

 

What is Guanine?

Guanine is one of the four main nucleobases found in the nucleic acids DNA and RNA, the others being adenine, cytosine, and thymine (uracil in RNA). In DNA, guanine is paired with cytosine. The guanine nucleoside is called guanosine.

With the formula C5H5N5O, guanine is a derivative of purine, consisting of a fused pyrimidine-imidazole ring system with conjugated double bonds. Being unsaturated, the bicyclic molecule is planar.

 

Guanine Certificate of Analysis

Product name Guanine
CAS No. 73-40-5 Outer Packing 25gk/drum
Production date 2017.11.11 Shelf life 2020.11.10
Standard adopted Conform with the Enterprise Standard
Items of analysis Specification Results
Appearance White to off-white powder Comply
Indentification HPLC/IR Comply
Solubility Soluble in dilute alkali hydroxide Comply
Loss on drying ≤1.0% 0.78%
Sulphated ash ≤0.10% 0.03%
4-hydroxy-2,5,6-triaminopyrimidine sulphate ≤0.20% 0.05%
Any other individual impurity ≤0.20% 0.03%
Total impurities ≤1.0% 0.08%
Assay(HPLC)C5H5N5O 98.0~102.0% 99.6%
Storage In-house standard(2-8°C) 2-8°C
Conclusion Qualified

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