Product Introduction

Product Name: Guanosine

English name: Guanosine

CAS number: 118-00-3

Molecular formula: C10H13N5O5

Molecular Structure:

Molecular weight: 283.24

Melting point : 250 °C (dec.) (lit.)

Specific rotation: -62 o (c=3, in 0.1 N NaOH)

Boiling point : 425.8°C (rough estimate)

Density : 1.3790 (rough estimate)

Refractive index : -76 ° (C=1, 1mol/L NaOH)

Storage conditions: room temp

Solubility : 0.1 M NaOH: 0.1 g/mL, clear, slightly yellow

Acidity coefficient (pKa): pK1: 1.9(+1); pK2: 9.25(0); pK3: 12.33(OH) (25°C)

Form: Powder

Color: White to light yellow

Odor: Odorless

Optical activity: [α]20/D -73±2°, c = 1.5% in 1 M NaOH

Water solubility : 0.75 g/L (25 oC)

Merck: 14,4566

BRN: 625911

Uses: As an important intermediate for food and pharmaceutical products, it can be used to synthesize food freshness enhancers - disodium 5'-guanylate, disodium nucleotides with flavor, and nucleoside antiviral drugs such as ribavirin Chemicalbook , Acyclovir, etc., are also the main raw materials for the manufacture of drugs such as acyclovir, ribavirin (ATC), and guanosine triphosphate (GTP).

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.