Famous Brand Star-Selection Supply Proteinase K Powder CAS 39450-01-6 with Best Price

• Customization: Available
• CAS No.: 39450-01-6
• Formula: C29h27n2o12p
• Model NO.: Proteinase K
• EINECS: 254-457-8
• 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

 

 

 

 

 

 

Detailed Photos

 

Packaging & Shipping

 

 

 

Company Profile

 

Our Advantages

 

 

Advantages
1.For products exported we can offer COA Certificate and official PI.
2.We are manufacturer with own lab and factory, can provide high quality products with factory price. 
3.Products can be sent out in 24 hours after payment. Tracking number available, fixed service person are 7x24h for you to contact.
4.Secure and discreet shipment. Various transportation methods for your choice, like DHL/UPS/TNT/FedEx/SF-express.
5.Customs pass and satisfied rate ≥99%.
6.For hot sale products we have stock in there for transferring. 
7.We have different couriers to different countries.
8.We have clients throughout the world.
FAQ
1.Will you supply samples for test the quality? 
We'd like to offer the samples for the quality evaluation,the shipping cost is borne by customers.
2.What is your package?
Powder: PE bag, glass bottle or PTFE bottle for inner packing
Liquid: glass bottle or PTFE bottle for inner packing
Bulk order: Fiber drum or steel drum.
3.What is your delivery term and delivery period? 
FOB, CIF, etc. You can choose the one which is the most convenient or cost effective for you.The sample within 5 days, and bulk order within 7 days.
4.How to delivery by express?
A: Parcel will be shipped out in 3 working days after payment. Usually we use EMS, ePacket, Fedex, DHL, TNT and USA Domestic mixed shipping and so on. 
5.Is there a discount?
A: Yes, for larger quantity, we always support with better price. 
6.What's your MOQ?
A: For the high value product, our MOQ starts from 1g and generally starts from 10gs. For other low, price product, our MOQ starts from 100g and 1kg.
7.How to make orders?
A: Send inquiry to us,we do the offer. Payment via Western Union, Moneygram, Bank Account ect.. Then we will arrange shipping. After delivery we will offer tracking No..