1-1000 Grams
$15.00
≥1001 Grams
$5.00
Product Description
CAS Number: 69815-49-2
Name: Norepinephrine
Formula: C12H19NO10
Package: aluminum bag or paper drums
Appearance: white powder
Norepinephrine (abbreviated norepi or NE), also called Noradrenaline (abbreviated NA, NAd, or norad), or 4,5-β-trihydroxy phenethylamine is a catecholamine with multiple roles including those as a hormone and a neurotransmitter. It is the hormone and neurotransmitter most responsible for vigilant concentration in contrast to its most chemically similar hormone, dopamine, which is most responsible for cognitive alertness.
Certification of Analysis
Test Items | Standard |
Appearance | White or almost-white crystalline powder |
Identification | A:[a]D20-44°—-48° |
| B. IR Spectum similar to working standa |
| C. Give Reaction of Tartrate |
Appearance of Solution | Clear and colour ≤BY5 |
Related Substances | Tatol Impurity in 280nm ≤ 0.3% |
| Impurity A,adrenaline ≤ 0.5% |
| Impurity B,noradrenaline ≤0.1% |
| Impurity C,dopamine≤0.1% |
| Impurity D ≤0.1% |
| Impurity E ≤0.1% |
| Impurity F ≤0.1% |
| Impurity G ≤0.1% |
Unspecified impurities | ≤ 0.1% |
Disregard limit | ≤0.05% |
Water | 4.5%~5.8% |
Sulphated ash | ≤ 0.1% |
Residual solvents | Ethanol 5000ppm |
Assay | 98.5%~101.0% |
Function&Application
One of the most important functions of norepinephrine is its role as the neurotransmitter released from the sympathetic neurons to affect the heart. An increase in norepinephrine from the sympathetic nervous system increases the rate of contractions in the heart.As a stress hormone, norepinephrine affects parts of the brain, such as the amygdala, where attention and responses are controlled.Norepinephrine also underlies the fight-or-flight response, along with epinephrine, directly increasing heart rate, triggering the release of glucose from energy stores, and increasing blood flow toskeletal muscle.
Qingdao Sigma chemical Co., Ltd is is a global chemical industry manufacturers and suppliers of pharmaceuticals and intermediates, food and feed additives, herbal extracts, agrochemicals and fine chemicals etc.
The aim of Qingdao Sigma chemical Co., Ltd is a quality policy that "Elements in the system all have been satisfied, Personnel has been trained; Every batch of material is checked, Each procedure guarantees the quality; Every bag of our products is top grade, Service is thoughtful all the time, quality and reputation to increase market share and promote enterprise development. The quality, colors and forms of our products have reached a high level in related chemical industry, which relies on characteristic and advanced processing technology and it has gained a high and reliable reputation from customers at both quality and services.
Answer: Yes, we are factory founded on 2002.
Q2: How to contact with us?
Click the Alibaba "Contact Supplier" And then send us message the product you interest in, you will get reply within 24 hours.
Q3:Which kind of payment terms do you accept?
For small order,you can pay by T/T,Western Union or Paypal,nomal order by T/T to our company account
Q4:Can you give me a discount price?
Surely,It depend on your qty
Q5:How can i get a sample?
free samples is available,but freight charges will be at your account and the charges will be return to you or deduct from your order in the future.
Q6: 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.
Q7:How do you treat quality complaint?
A:First of all, our quality control will reduce the quality problem to near zero. If there is a real quality problem caused by us, we will send you free goods for replacement or refund your loss.
Scan the QR code with your phone, or visit the URL
- 1203 Town Center Drive FL 33458 USA
- +86 18661891880
- [email protected]