Chemical Properties:
Package: Bottle, Aluminium foil bag, 25kg/Cardboard Drum, or according to customer's requirement. Storage Condition: Store in sealed containers at cool, dry and ventilated warehouse away from incompatible substances. Protect from light and moisture.Shanghai Ruifu Chemical Co., Ltd. is the leading manufacturer and supplier of N-Acetyl-DL-Tryptophan (Ac-DL-Trp-OH) (CAS: 87-32-1) with high quality. Ruifu Chemical supplys a series of amino acids and derivatives. We are confident in providing high quality products, reasonable prices and prompt delivery. We can provide COA, worldwide delivery, small and bulk quantities available. If you are interested in N-Acetyl-DL-Tryptophan, Please contact: alvin@ruifuchem.com| Safety Statements | 24/25 - Avoid contact with skin and eyes. |
| WGK Germany | 3 |
| TSCA | Yes |
| Hazard Note | Keep Cold |
| HS Code | 2922491990 |
Description:
Safety Information:
Package & Storage:
| Chemical Name | N-Acetyl-DL-Tryptophan |
| Synonyms | Ac-DL-Trp-OH; N-Ac-DL-Trp-OH; N-Ac-DL-Trp; Acetyl-DL-Tryptophane; Acetyltryptophan; N-Acetyltryptophan; DL-N-Acetyltryptophan; N-Acetyl-Tryptophan; N(α)-Acetyl-DL-Tryptophan; Acetyl-Dextro, Laevo-Tryptophan; DL-alpha-Acetylamino-3-Indolepropionic Acid; N-Acetyl-2-Amino-3-(3-Indolyl)propionic Acid; (2S)-2-(Acetylamino)-3-(1H-Indol-3-yl)propanoate |
| Stock Status | In Stock, Production Capacity 30 Tons per Month |
| CAS Number | 87-32-1 |
| Molecular Formula | C13H14N2O3 |
| Molecular Weight | 246.27 |
| Melting Point | 204.0~206.0℃(dec.) (lit.) |
| Density | 1.1855 |
| Sensitive | Air Sensitive, Light Sensitive |
| Water Solubility | Insoluble in Cold Water |
| Solubility | Soluble in Methanol, Almost Transparency |
| Storage Temp. | Sealed in Dry, Store at Room Temperature |
| COA & MSDS | Available |
| Classification | Amino Acids & Derivatives |
| Brand | Ruifu Chemical |
Advantages:
How to Purchase? Please contact Dr. Alvin Huang: sales@ruifuchem.com or alvin@ruifuchem.com 15 Years Experience? We have more than 15 years of experience in the manufacture and export of a wide range of high quality pharmaceutical intermediates or fine chemicals. Main Markets? Sell to domestic market, North America, Europe, India, Korea, Japanese, Australia, etc. Advantages? Superior quality, affordable price, professional services and technical support, fast delivery. Quality Assurance? Strict quality control system. Professional equipment for analysis include NMR, LC-MS, GC, HPLC, ICP-MS, UV, IR, OR, K.F, ROI, LOD, MP, Clarity, Solubility, Microbial limit test, etc. Samples? Most products provide free samples for quality evaluation, shipping cost should be paid by customers. Factory Audit? Factory audit welcome. Please make an appointment in advance. MOQ? No MOQ. Small order is acceptable. Delivery Time? If within stock, three days delivery guaranteed. Transportation? By Express (FedEx, DHL), by Air, by Sea. Documents? After sales service: COA, MOA, ROS, MSDS, etc. can be provided. Custom Synthesis? Can provide custom synthesis services to best fit your research needs. Payment Terms? Proforma invoice will be sent first after confirmation of order, enclosed our bank information. Payment by T/T (Telex Transfer), PayPal, Western Union, etc.FAQ:
Stable Supply: Maintain reasonable stock
Professional Service: One stop purchasing service
Technical Support: Technology solution available
Custom Synthesis Service: Ranged from grams to kilos
Fast Delivery: If within stock, three days delivery guaranteed
High Quality: Established a complete quality assurance system
Sufficient Capacity: Sufficient facilities and technicians
OEM Package: Custom package and label available
Specifications:
| Items | Inspection Standards | Results |
| Appearance | White Crystals or Crystalline Powder | Conforms |
| Identification | Infrared Absorption Spectrum | Conforms |
| Specific Rotation [α]20/D | -1.0° to +1.0°(C=2.5 in MeOH) | Conforms |
| Melting Point | 204.0~206.0℃ | Conforms |
| Chloride (Cl) | ≤0.039% | <0.039% |
| Sulfate (SO4) | ≤0.020% | <0.020% |
| Ammonium (NH4) | ≤0.020% | <0.020% |
| Iron (Fe) | ≤30ppm | <30ppm |
| Heavy Metals (Pb) | ≤10ppm | <10ppm |
| Arsenic (As2O3) | ≤2.0ppm | <2.0ppm |
| Other Amino Acids | No Spot | No Spot |
| Loss on Drying | ≤0.50% | 0.25% |
| Residue on Ignition (Sulfated) | ≤0.20% | 0.09% |
| Assay | 99.0 to 101.0% (Titration: Anhydrous Basis) | 99.6% |
| pH Value | 2.5 to 3.5 | 3.0 |
| Conclusion | This Product by Inspection Accords with the Standard of AJI97 | |
Application:
N-Acetyl-DL-Tryptophan (Ac-DL-Trp-OH) (CAS: 87-32-1) is an N-acetylamino acid that is the N-acetyl derivative of tryptophan. N-Acetyl-DL-Tryptophan is used is produced via chemical synthesis using the standard amino acid, tryptophan. It can be used in downstream applications of biopharmaceutical production as a transfer agent or stabilizer. N-Acetyl-DL-Tryptophan is widely used in pharmaceutical, pesticide, chemical industry, etc. N-Acetyl-DL-Tryptophan is used as stabilizer in therapeutic products normal serum albumin and plasma protein fraction.87-32-1 AJI97 Test Method:
N-Acetyl-DL-Tryptophan (Ac-DL-Trp-OH) (CAS: 87-32-1) AJI97 Test Method N-Acetyl-DL-Tryptophan, when dried, contains not less than 98.0 percent and not more than 101.0 percent of N-Acetyl-DL-Tryptophan (C13H14N2O3). Description: White crystals or crystalline powder, strongly acid taste. Solubility (H2O, g/100g): 0.14 (30℃), 0.30 (50℃), 0.66 (70℃) Identification: Compare the infrared absorption spectrum of the sample with that of the standard by potassium bromide disc method. Specification State of Solution (Transmittance): 0.5g in 50ml of 1mol/L NaOH, spectrophotometer, 430nm, 10mm cell thickness. Chloride (Cl): 0.36g, A-1, ref: 0.40ml of 0.01mol/L HCl. Take the sample in a nessler tube and add 30ml of methanol and dissolve with heating. After cooling, add 5ml of water and 10ml of dilute nitric acid and mix, then add water to 50ml to make a test solution. Comparison: Proceed as directed for procedure under following (1). Ammonium (NH4): A-3 Iron (Fe): 0.5g, (2) ref: 1.5ml of Iron Std. (0.01mg/ml) Heavy Metals (Pb): 2.0g, (3), ref: 2.0ml of Pb Std. (0.01mg/ml) Arsenic (As2O3): 1.0g, (5), ref: 2.0ml of As2O3 Std. Other Amino Acids: No spot. 1mol/L NaOH, test Sample: 10μg, G-2-a. No spot means that either principal spot of any other spots are not detectable. Loss on Drying: at 105℃ for 3 hours Residue on Ignition (Sulfated): AJI Test 13 Assay: Dried sample, 350mg, methanol 30ml+H2O 20ml, (2), 0.1mol/L NaOH 1ml=24.627mg C13H14N2O3 pH: 1.0g in 100ml saturated aqueous solution. Recommended storage limit and condition: Preseved tight containers at controlled room temperature (2 years).