Greenutra Resource Inc
Country: China (Mainland)
Year Established: 2012
Business License:
Business type: Trading Company
Product Certificate:(1)
- QS
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Whole sell L-tryptophan 73-22-3 with top quality CAS NO.73-22-3

FOB Price:: USD 28.00-28.00 /Kilogram Get Latest Price

Min.Order Quantity:: 1 Kilogram

Purity:: 99%

Port:: Dalian

Payment Terms:: L/C,D/A,D/P,T/T,

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Product Details

Keywords

L-tryptophan
whole sell L-tryptophan
top quality 73-22-3

Quick Details

ProName: Whole sell L-tryptophan 73-22-3 with t...
CasNo: 73-22-3
Molecular Formula: C11H12N2O2
Appearance: White powder
Application: Nutritional health products and food a...
DeliveryTime: 5days
PackAge: Food grade multiplayer polyethylene ba...
Port: Dalian
ProductionCapacity: 100 Kilogram/Month
Purity: 99%
Storage: Store in a cool dry place, avoiding su...
Transportation: DHL/by sea
LimitNum: 1 Kilogram
Related Substances: L-Tryptophan
Residue on Ignition: 0.1%
Heavy Metal: 10ppm
Valid Period: 2years

Superiority

whole sell l-tryptophan 73-22-3 with top quality

company overview

greenutra resource is committed to the natural ingredients, formulation and application in the field of r&d, production and sales as the “one-step” natural product solution provider. for supplying safe and effective product, we invested a joint venture gmp factory weihai songling nuokejia herbal medicine co., ltd.

greenutra resource in order to“make life healthier and better”as the enterprise vision, with“satisfy human’s infinite pursuit of health”as the enterprise mission, relying on china’s vast range of plant resources, set good quality control platform, professional team and partners are committed to natural ingredients and formula development, production strictly under gmp standard. greenutra’s products are widely used global nutrition, health care, medical treatment, functional food, beverage and cosmetics etc.

faq

1.what we do?

we are a botanical extract manufacturer, that means we do customized product. so if you cannot find ready products here, you can email us detailed requirement and we'll try our best to tailor the suitalbe product for you. even we are not able to supply you, we'll let you kow asap too

2.what file you need to prepare if you want to get an quotation from us？

please tell us some info. about about what you need, like quanity,destination, application, your company name and contact info. etc.

if you bought it before, it's better that you have a exist spec. for us. off course more details it will be helpful for us to reccomend a suitable product for you.

3.how about the delivery？

normally, for sample order, our delivery is about 2-4 days.

for small batch, our delivery is about 3-5 days.

for mass production batch, our delivery is about 4-8 days.

but that depends on the real condition when we get your order.

4.how can we guarantee you receive an good quality product？

for greenura, management is in this feild over 15 years and our facotry is gmp and iso certified.

for qc and qa, we use advanced philosophy and equipment.

5.with payment terms do we accept？

for sample order or small batch, we suggest you to use pay-pal and .

for mass production batch, we suggest you to use t/t.

6.with transportation do we use？

for small quantity, it will be sent to you by dhl and ems etc.

for mass production batch, it will be delivered by air or sea.

Details

whole sell l-tryptophan 73-22-3 with top quality

overview

pro name	l-tryptophan
cas	73-22-3
mf	c11h12n2o2
purity	99%
appearance	white powder
storage	store in a cool dry place, avoiding sunlight directly
uses	nutritional health products and food additives
moq	1kg
port	dalian
production capacity	100kg/month
otd	5days
packing	food grade multiplayer polyethylene bags, 25kg in one type cardboard drum
transaction	dhl/by sea

description

l-tryptophan is white or light yellow crystalls or crystal powder; odourless and slightly bitter taste. slightly soluble in water, slightly dissolve in ethanol, insoluble in chloroform, easy soluble in formic acid, and dissolve in sodium hydroxide solution or dilute hydrochloric acid. tryptophan is an important precursor substances in plant auxin biosynthesis, its structure is similar to iaa, widespread in higher plants.

tryptophan (symbol trp or w; encoded by the codon ugg) is an α-amino acid that is used in the biosynthesis of proteins. it contains an α-amino group, an α-carboxylic acid group, and a side chain indole, making it a non-polar aromatic amino acid. it is essential in humans, meaning the body cannot synthesize it: it must be obtained from the diet. tryptophan is also a precursor to the neurotransmitter serotonin and the hormone melatonin.

like other amino acids, tryptophan is a zwitterion at physiological ph where the amino group is protonated (–nh3+; pka = 9.39) and the carboxylic acid is deprotonated ( –coo−; pka = 2.38).

function

metabolism of l-tryptophan into serotonin and melatonin (left) and niacin (right). transformed functional groups after each chemical reaction are highlighted in red.

amino acids, including tryptophan, are used as building blocks in protein biosynthesis, and proteins are required to sustain life. many animals (including humans) cannot synthesize tryptophan: they need to obtain it through their diet, making it an essential amino acid. tryptophan is among the less common amino acids found in proteins, but it plays important structural or functional roles whenever it occurs. for instance, tryptophan and tyrosine residues play special roles in "anchoring" membrane proteins within the cell membrane. in addition, tryptophan functions as a biochemical precursor for the following compounds (see also figure to the right):

in bacteria that synthesize tryptophan, high cellular levels of this amino acid activate a repressor protein, which binds to the trp operon.binding of this repressor to the tryptophan operon prevents transcription of downstream dna that codes for the enzymes involved in the biosynthesis of tryptophan. so high levels of tryptophan prevent tryptophan synthesis through a negative feedback loop, and when the cell's tryptophan levels go down again, transcription from the trp operon resumes. this permits tightly regulated and rapid responses to changes in the cell's internal and external tryptophan levels.

whole sell l-tryptophan 73-22-3 with top quality