Lab Supply High Purity Proteinase K Powder CAS 39450-01-6 with Best Price

• Customization: Available
• CAS No.: 39450-01-6
• Formula: C29h27n2o12p
• Model NO.: Proteinase K
• Classification: High Purity Material
• Grade: LR
• Specific Usage: For Biological Purpose, Technical Grade
• Content: Standard
• Usage: Laboratory Reagents, Analytical Reagents
• Source: Dry Powder
• Habit Appellation: Chemical Medicine
• Application: Industry, Scientific Research
• Storage Environment: Low Temperature Drying
• Shelf Life: 3 Years
• MW: 358.21
• Transport Package: 1kg/Bag
• Specification: 1000kg
• Trademark: Star-Selection
• Origin: Huanggang
• HS Code: 000000
• Production Capacity: 100000kg/Year

Product Description

 

Product Description

 

 

 

CAS No.: 39450-01-6
EINECS No.: 3.4.21.64

Form: Lyophilized White Powder.
Source: Mutated gene from Tritirachium limber, Expressed in recombinant yeast.
Specific Activity: ≥34U/mg dry weights
Package: 100mg/Bottle, 1g/Bottle (Standard) or 1-200 gram Customer packing.
Storage Conditions:Store at 4 to -20ºC recommended.
Mutated Proteinase K powder is stable at room temperature in 3 years.
Expiration : Three years if kept below 4ºC.
Molecular Weight: 29,300 D
QC Assays:
Activity Assay and Unit Definitions: 
 One unit is defined as the amount of enzyme that will liberate 1 μmol of tyrosine per minute at 37º C, pH7.5.
DNase Activity: none detectable enzyme activity with λ DNA after 6 hours incubation at 37ºC.
RNase Activity: none detectable of ribnuclease activity after 16 hours incubation at 25 º C
Protein Purity: over 99% (Native-PAGE and SDS-PAGE assay)

 

 

Description	White  powder	Complies
Identification	IR	Complies
	HPLC	Complies
Heavy metal	≤10ppm	5ppm
Pb	≤3ppm	1.5ppm
Hg	≤0.1ppm	0.05ppm
Cd	≤1ppm	0.2ppm
Loss on drying	≤0.5%	0.12
Residue on lgnition	≤0.1%	0.03
Single impurity	≤0.5%	0.12
Total impurity	≤1.0%	0.29
Total bacteria	≤1000cfu/g	<1000
Yeast and Mould	≤100 cfu/g	<000
E.coli/25g	Absent	Absent
Salmonella/25g	Absent	Absent
Assay	≥99.0%	99.4%
Conclusion	Conforms with USP/EP standards

 

 

 

 

 

 

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Packaging & Shipping

 

 

 

Company Profile

 

Our Advantages

 

 

Why Choose Us?
1.Full experience of large numbers containers loading in Chinese sea port.
2.Fast shipment by reputed shipping line.
3.Packing with pallet as buyer's special request.
4.Best service after shipment with e mail.
5.Cargoes together with container sales service available.
6.Full experience for export.
7.Cargoes photo before and after loading into container.
8.Raw materials from Chinese origin.
FAQ
1:Can I get some samples before bulk order?
Yes, we can supply the free sample, but the shipping cost be paid by customers.
2: How to start orders or make payments?
PI will be sent first after confirmation of order,enclosed our bank information.Payment by T/T, Western Union, L/C,Moneygram or Bitcoin.
3: What's your MOQ?
We accept less quantity such as 10g on the condition that sample charge is 100% paid. It depends on the product.
4: How about delivery leadtime?
Delivery lead time: About 3-5 workdays after payment confirmed.
5: How to contact us ?
You can chat with us by Trademanager,WhatsApp&Skype Online. You can dial our telephone directly or send E-mail to us and you will get our reply.
6: How to confirm the Product Quality before placing orders?
You can get samples for the product you interest. Or you can send us your product specifications and requests,we will manufacture the products according to your requests.