Keep my session open?
Ending In 
The session is expired
Your session has expired. For your security, we have logged you out.
Would you like to log in again?

L(-)-Tryptophan 98.5-101.5% USP

Supplier: Avantor Performance Materials

Food GMP Manufactured Product
GMP Manufactured Product
Meets E.P. Chemical Specifications
Meets F.C.C. Requirements
Meets J.P. Chemical Specifications
Meets U.S.P Requirements


Formula: C₁₁H₁₂N₂O₂
MW: 204,23 g/mol
Melting Pt: 290 °C
Density: 1,34 g/cm³ (20 °C)
Storage Temperature: Ambient
MDL Number: MFCD00064340
CAS Number: 73-22-3
EINECS: 200-795-6
UN: 0000
Merck Index: 12,09929
Specification Test Results
Meets J.P. Chemical Specifications 98.5 - 101.5 %
Meets U.S.P Requirements Passes Test
GMP Manufactured Product -32.8 - -29.4 Degree
Meets E.P. Chemical Specifications 5.5 - 7.0
Meets F.C.C. Requirements <= 0.3 %
Food GMP Manufactured Product <= 0.1 %
Bulk Pharmaceutical Chemical <= 0.05 %
Bulk Food Chemical <= 0.03 %
USP - Assay (C₁₁H₁₂N₂O₂) (dried basis) 98.5 - 101.5 %
USP - Identification Passes Test
USP - Specific Rotation [Å]²⁵ D -32.8 - -29.4 Degree
USP - pH 5.5 - 7.0
USP - Loss on Drying at 105°C <= 0.3 %
USP - Residue on Ignition <= 0.1 %
USP - Chloride (Cl) <= 0.05 %
USP - Sulfate (SO₄) <= 0.03 %
USP - Iron (Fe) <= 0.003 %
USP - Organic Impurities - Total Impurities 1 <= 0.01 %
USP - Organic Impurities - Total Impurities 2 <= 0.03 %
USP - Organic Impurities - Tryptophan Related Compound A <= 10 ppm
FCC - Assay (C₁₁H₁₂N₂O₂) (dried basis) 98.5 - 101.5 %
FCC - Identification Passes Test
FCC - Lead (Pb) <= 5 mg/kg
FCC - Loss on Drying at 105°C <= 0.3 %
FCC - Residue on Ignition <= 0.1 %
FCC - Specific Rotation [Å]²⁵ D -32.7 - -29.7 Degree
JP - Assay (C₁₁H₁₂N₂O₂) (dried basis) 98.5 - 101.0 %
JP - Identification Passes Test
JP - Specific Rotation [Å]²⁰ D -33.0 - -30.0 Degree
JP - pH 5.4 - 6.4
JP - Clarity and Color of Solution Passes Test
JP - Chloride (Cl) <= 0.021 %
JP - Sulfate (SO₄) <= 0.028 %
JP - Ammonium (NH₄) <= 0.02 %
JP - Heavy Metals (as Pb) <= 20 ppm
JP - Arsenic (As) <= 2 ppm
JP - Related Substances Passes Test
JP - Loss on Drying at 105°C <= 0.30 %
JP - Residue on Ignition <= 0.10 %
Endotoxin Concentration, IU/mg For Information Only
EP - Identification A Passes Test
EP - Identification B Passes Test
EP - Appearance of Solution Passes Test
EP - Specific Optical Rotation [Å]²⁰ D -33.0 - -30.0 Degree
EP/BP-Ninhydrin-Positive Substances-Each <= 0.2 %
EP/BP-Ninhydrin-Positive Substances-Total Impurities <= 0.5 %
EP - 1,1'Ethylidenebistryptophan <= 10 ppm
EP - Sum of the Areas less than TryptophanÆ <= 100 ppm
EP - Sum of the Areas greater than TryptophanÆ <= 300 ppm
EP - Chloride (Cl) <= 200 ppm
EP - Sulfate (SO₄) <= 300 ppm
EP/BP - Ammonium (NH₄) <= 0.02 %
EP - Iron (Fe) <= 20 ppm
EP - Loss on Drying at 105°C <= 0.5 %
EP - Sulfated Ash <= 0.1 %
EP - Assay (C₁₁H₁₂N₂O₂) (dried basis) 98.5 - 101.0 %

Log in to see your contract pricing and availability.
  Remember me on this device
 

ORDER

Expand All / Collapse All
Pack type Pk VWR Catalog Number Quantity
poly bottle 1 kg 2092-06
Expand All / Collapse All
Generate Barcodes Barcode Label Format: 
Generate PDF Catalog Page

Enter Details

Select the article for which you are looking for Certificate

Indicate the Lot Number. This field is mandatory. Enter 'x' if unknown for VWR Chemicals

Enter Certificate Details

Enter the Lot number:

Choose from recent batch/lot numbers:

Or
Review & Compare Alternatives
We found alternative products that can save you up to  per item-unit.  To compare product details, select up to 3 alternatives below and click Compare Selected. To add items to your basket, enter a quantity and click Add to Basket.

Original Product:

Description Catalog Number Availability Unit Your Price Price Per Qty