Safe Shipment and Fast Delivery Proteinase K Powder CAS 39450-01-6 From Star-Selection

• 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

 

 

Our Advantage:
1.We have stock so we can delivery quickly at the very day when receive the payment.
2.Best price, first class service, high successful delivery rate. A discount would be given when you make a large order.
3.High quality guarenteed, once any problem is found, the package would be reshipped for you.
4.Shipping by express (FedEx,UPS,DHL,EMS TNT HKEMS), by air . The most professional forwarder would be recommanded for you.
5.Warm aftersale service for you 24/7 . Any of your question would be solved for the first as soon as possible . Adhering to the principle of customer first conviction . we will provide the best and the most sincere services as possible as we can.
Delivery
1. Sent out in 24hours once payment comfirm.
2. Professional agent make sure our ship fastly and safety
3.Offer your tracking number to you once we get it ,in order to facilitate you track the express
FAQ:
Q1: Can i get some samples?
A: Yes, we can supply the 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, Western Union or Paypal.
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:Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.
Q5: How about delivery lead time?
A:Delivery lead time: About 3-5 days after payment confirmed. (Chinese holiday not included)
Q6: Do You Ship Over The Weekend?
We use EMS,TNT,FEDEX,DHL four kinds of couriers. EMS don't collected parcels over the weekend. The packages can be shipped out normally before 12:00 a.m in Beijing time if you choose to ship by TNT or FedEx.