No Customs Issues, Safe Shipping 99% Proteinase K Powder Reached Safely From China Factory CAS 39450-01-6

• 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

 

 

FAQ
Q1: Is it possible to custom the labels with my own design?
Yes, and you just need to send us your drawings or artworks, then you can get you want.
Q2: How does your factory control the quality.
Quality is the life of our factory, first, each raw materials, come to our factory, we will test it firstly, if qualified, we will process the manufacturing with this raw materials, if not, we will return it to our supplier, and after each manufacturing step, we will test it, and then all the manufacturing process finished, we will do the final test before the commodities left our factory.
Q3: How about your service?
We provide 7*24 hours service, and whenever you need, we will always here with you, and besides, we can provide one stop purchasing for you, and when you purchase our commodities, we can arrange testing, custom clearance, and logistic for you!
Q4: Does free samples available for quality evaluation?
Yes, of course, we can provide free samples for you before you buy commercial quantity.
Q5: What is the delivery time?
For small quantity, it will take only 1-2 days for delivery, and after large quantity, it will take about 1-2 weeks.
Our Advantages
•Why Choose Us                                                                                         
1.Quality is our culture. We cooperate with research institutions,strictly control the process from raw material to finished product
 2. Time is the gold.Fast shipment by reputed shipping line.
 3. Customer comes first. We provide reasonable price, high quality product and prompt shipment.
 4. Full experience of large numbers containers loading in Chinese sea port.
 5. Best service after shipment .
 6. Professional documents for your clearance .
Our services                                                                            
1. OEM/ODM Available.
2. Quick and clear response to customers questions.Warm after sale service, we will help to solve the problems in your usage.
3. The more discount you'll get if your order is potential.
4. Packing with pallet as buyer's special request.
5. Door to door shipping service is available.
6. Packing with pallet as buyer's special request.