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factory direct supply Tryptophan , Tryptophan manufacturer , CAS NO. 73-22-3

Product Description

factory direct supply Tryptophan , Tryptophan manufacturer ,  CAS NO. 73-22-3

Specification

L-Tryptophan

Tryptophan

CAS No.73-22-3

73-22-3

feed grade

best price

Product Description

 

Product Name

L-Tryptophan

Synonyms

(s)-2-amino-3-(1h-indol-3-yl)propanoic acid; (S)-(-)-2-AMINO-3-(3-INDOLYL)PROPIONIC ACID; (S)-2-AMINO-3-(3-INDOLYL)PROPIONIC ACID; (S)-(-)-TRYPTOPHAN;RARECHEM AB PP 1463; TRP; TRYPTOPHAN;TRYPTOPHAN, DL-

CAS

73-22-3

EINECS

200-795-6

Molecular formula

C11H12N2O2

Molecular Weight

204.23

Molecular Structure

Physical and Chemical Properties

M.P. 

289-290 °C (dec.)(lit.)

Specific rotaiton

-31.1 ° (c=1, H20)

Density

1.34

Refractive index

-32 ° (C=1, H2O)

Water Solubility 

11.4 g/L (25 °C)

 

General Description

White crystalline powder

Usage

1)   L-tryptophan has been available in health food stores as a dietary supplement.

2) As a metabolite of typtophan, has been suggested as a treat for epilepsy and depression

Packing

25kg/drum

Specifications

Items

Standard

Appearance

White crystalline powder

Identification

Infrared absorption spectrum

Loss on drying

≤0.30%

Residue on ignition

≤0.1%

Chloride

≤0.05%

Sulfate

≤0.03%

Iron

≤0.003%

Heavy metals

≤0.0015%

Organic volatile impurities

Meets the requirements

Assay

98.5-101.5%

PH

5.5-7.0

 

Packaging & Shipping

 

 

 

 

 

 

 

 

Our Services

 

 

 

 

 

 

 

 

 

 

Company Information

 

 

FAQ
QUALITY GUARANTEE
There is no any quality claim after sale, how do you make it?1. Our staff are all experienced and with chemistry related major background, they will study and confirm what EXACT PRODUCT YOU NEED!
2. Free sample or Preshipment sample are available for NEW Project of NEW customers before commercial purchasing.
3. Third Party Inspection like SGS can be arranged according to requirement.
4. On-Spot QC in our APPROVED associated production bases  with necessary certification  like GMP, ISO etc.
5. Routine PLANT AUDIT by techniques from us or customers.
How can you guarantee the quality we  receive is same as the sample or specification?1. Third Party like CIQ, SGS inspection before shipment upon request.
2. In Case of PSS we will hold the cargo until approval from customer side.
3. We have clear and detailed quality clause in contract with manufacturer, if any discrepancy of quality/quantity, they will take responsibility.
 
PROFESSIONAL LOGISTIC
I put order and pay to you, how do you pack and deliver my cargo to me?We have strict training process about SOP of Packing and Shipping.
Detailed SOP profile is available for different mode like Safe Cargo and Dangerous Cargo bySea, Air, Van or even Express Shipment.
How to do if my cargo fell into the sea?
That won’t happen. Haha.
If that happened, you are very lucky, you can claim a big money with the Insurance Company, we always put Insurance on half of you before shipment.
I need the material urgently, hurry! Hurry!ok?
Let’s pray you will receive the cargo in a wink.Joking!
Don’t worry, Fast and On-time delivery are the key concerns in our mind. We always book shipment through reputed liner even their charge are higher to us. 
 
PAYMENT WARRANTY
Will your company be missing after we pay you in advance?We do chemicals in life! We will never get missing.
Is there a solution? That our payment are safe, and shipment proceed on time?You can use Trade Assurance Service by Alibaba Group. Pls refer to the link for moreinformation.We don’t know you at all, how can we trust you?You are always warm welcomed to visit us at any time.
Before we start B2B, Alibaba has audited our company on-spot and approved our credit.
Commitment is the No.1 Point of our Enterprise’s Value.

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