Superiority:
High purity CAS 73-40-5 Guanine in stock
Our main business covers the fields below:
1.Noble Metal Catalysts (Pt.Pd...)
2.Organic Phosphine Ligands (Tert-butyl-phosphine.Cyclohexyl-phosphine...)
3.OLED intermediates (Fluorene,Carbazole,Boric acid...)
4.Pharmaceutical intermediates
About us
1.More than 10 years chemical exporting experience
We have produced chemical more than fifteen years., 80% products are for export .
More than 10 years chemical exporting experience. Good and stabilized factory price.
2.Strict quality control system
3.Supply sample
Before order , we can send the sample for your testing . We ensure the quality is the same as bulk quantity .
Our advantage:
Q1:Can I get the free sample
A: Yes, we can supply the free sample, but the shipping cost be paid by our customers.
Q2: How to start orders or make payments
A: Proforma invoice will be sent first after confirmation of order, enclosed our bank information.
Payment by T/T, or Paypal or L/C.
Q3: How to confirm the Product Quality before placing orders
A:You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples.
You can send us your product specifications and requests,we will manufacture the products according to your requests.
Q4:What’s your MOQ
A:Usually according you demand.
Q5: How about delivery leadtime
A:Delivery lead time: As soon as possible. (Chinese holiday not included)
Q6:Is there a discount
A:Different quantity has different discount.
Q7: How to contact us
A:You can chat with us by Trademanager,Email,WhatsAPP,Wechat.
You can choose your interested products and send inquiry to us.
You can dial our telephone directly, you will get our reply.
Details:
High purity CAS 73-40-5 Guanine in stock
Details
CAS: 73-40-5
MF: C5H5N5O
MW: 151.13
EINECS: 200-799-8
Product Categories: nucleoside;API;Purines;Pharmaceutical Intermediates;Intermediates;Purine;Acyclovir;Biochemistry;Nucleobases and their analogs;Nucleosides, Nucleotides & Related Reagents;Nucleic acids;Bases & Related Reagents;Nucleotides
Mol File: 73-40-5.mol
Guanine Structure
Guanine Chemical Properties
Melting point >300 °C(lit.)
Boiling point 273.11°C (rough estimate)
density 1.4456 (rough estimate)
refractive index 2.0000 (estimate)
storage temp. 2-8°C
solubility 1 M NaOH: 0.1 M at 20 °C, clear, colorless
pka 9.92(at 40℃)
form Powder
color White to cream
Odor Odorless
Water Solubility practically insoluble
Decomposition 360°C
Merck 14,4564
Packing:
About us
1.More than 10 years chemical exporting experience
We have produced chemical more than fifteen years., 80% products are for export .
More than 10 years chemical exporting experience. Good and stabilized factory price.
2.Strict quality control system
3.Supply sample
Before order , we can send the sample for your testing . We ensure the quality is the same as bulk quantity .
Delivery:
Our advantage:
Q1:Can I get the free sample
A: Yes, we can supply the free sample, but the shipping cost be paid by our customers.
Q2: How to start orders or make payments
A: Proforma invoice will be sent first after confirmation of order, enclosed our bank information.
Payment by T/T, or Paypal or L/C.
Q3: How to confirm the Product Quality before placing orders
A:You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples.
You can send us your product specifications and requests,we will manufacture the products according to your requests.
Q4:What’s your MOQ
A:Usually according you demand.
Q5: How about delivery leadtime
A:Delivery lead time: As soon as possible. (Chinese holiday not included)
Q6:Is there a discount
A:Different quantity has different discount.
Q7: How to contact us
A:You can chat with us by Trademanager,Email,WhatsAPP,Wechat.
You can choose your interested products and send inquiry to us.
You can dial our telephone directly, you will get our reply.
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