Cytosine

Product Introduction

Product Name: Cytosine

English name: Cytosine

CAS Number: 71-30-7

Molecular formula: C4H5N3O

Molecular Structure:

Molecular weight: 111.1

EINECS Number: 200-749-5

Melting point: >300 °C (lit.)

Boiling point: 208.2°C (rough estimate)

Density: 0,48 g/cm3

Refractive index: 1.5000 (estimate)

Storage conditions: 2-8°C

Solubility: Clear to very slightly hazy colorless to faint yellow solution at 50 mg/ml in 0.5 M HCL.

Acidity coefficient (pKa): 4.60, 12.16 (at 25℃)

Form: Crystalline Powder

Color: White to slightly yellow

Water solubility: soluble

Merck: 14,2795

Stability: Stable. Incompatible with strong oxidizing agents.

Application: Cytosine is an important intermediate in fine chemicals, pesticides and medicine, and has a wide range of applications. In the field of pesticides, a new cytosine peptide-type antibiotic was discovered for the first time. It is a broad-spectrum agricultural antibiotic with high efficiency, low toxicity and low residue. In the field of medicine, cytosine is a nucleic acid substance that can be used as an antiviral drug. It is mainly used to synthesize anti-AIDS drugs and anti-hepatitis B drug lamivudine, anti-cancer drugs gemcitabine, and 5-flucytosine Pyrimidine, etc., used as pharmaceutical intermediates

Company Introduction

Who we are ?

We are Xinxiang Hongqi District Houyuan Chemical Co.,Ltd.,our factory is located in the High-tech Development Zone in Xinxiang City,Henan Province,China.

We are specializing in the research and industrialization of APIs and intermediates,biomedical research and Electronic chemicals.

Our company also do some trading business,greatly help clients source the qualified and reliable suppliers in China,providing the real market information,so that well control business risk for every one of our clients.

Sticking to the operating philosophy of “Integrity management,quality first,customer foremost,win-win”,Houyuan Chemical is devoted to providing satisfactory products & services with superior quality and reasonable price for our clients all over the world.

Why choose us?

1. Quick Response:Any inquiry or message will be replied within 12 hours.

2. Quality Guarantee:All products is strictly tested by our QC,confirmed by QA and approved by third party lab in China,USA,Canada,Germany,UK,Italy,France etc.

3. OEM Available.

4. Reasonable & Competitive Price.

5. Fast Delivery:within 3-5 days after payment confirmed.

6. Professional Documents for Your Clearance.

7. Economic Freight Save Your Cost.

Custom Synthesis Service

1,Our technical staff composed several Doctors and Masters is committed in pursuing research and development and equipped with the latest laboratory facilities.

2,Our quality control on the whole track from research to sale is monitored and tested.Cooperation with famous universities in China.

3,Our team:The satisfied service,The high-quality products,The concept of good faith.

Payment Term:

T/T,Western Union,Paypal,Corporate Account,L/C etc.Please contact with us to make sure it.

FAQ:

Q1:Can I get some samples?

 A:Yes,it is no problem.If you need sample,please feel free to contact with us.

Q2:How to confirm the Product Quality before placing orders?

A:Firstly,we will send the sample for your testing and also provide our testing report.Secondly,we could accept the third-party inspection.

Q3:What’s your MOQ?

 A:Normally,our MOQ is 1kg.But it could be according to your actual demand.Any quantity is OK.

Q4:How about the delivery time?

 A:Within 3-5 days after payment confirmed.(Chinese holiday not included)

Q5:How do you treat quality complaint?

A:Our quality control will ensure our quality in advance,if there is a real quality problem caused by us,we will provide good product again or refund your loss.