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High Purity Melatonin CAS 73-31-4 Off-white Powder Biochemical Research Reference Material

Name: High Purity Melatonin CAS 73-31-4 Off-white Powder Biochemical Research Reference Material
Brand: Guozhao
SKU: pr2609181594
Price: 89 USD
Availability: InStock

31 Inquiries

Unit Price:

$89-95/KG FOB

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CAS No.:

73-31-4

Grade:

Industrial Grade

Content:

99%

Port:

Qingdao

Brand:

Guozhao

Packaging:

25kg/bag

Sample Available:

Yes

Price valid (until):

2026-10-18

Contact Supplier

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Shandong Guozhao Import and Export Co., Ltd.

Company Type:

Distributor

Location:

China

Qualification:

Main Products:

CHEMICALS

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Product Description
Seller Information
Inquiry History

Description

Product Description

Melatonin, CAS 73‑31‑4, also named N‑Acetyl‑5‑methoxytryptamine, belongs to indole‑derived biochemical compound, appears as off‑white to pale yellow crystalline powder. Important Notice: This product is for laboratory research use ONLY. Strictly prohibited for dietary supplement, oral consumption, human body related application. Each batch is strictly tested by HPLC, applied as lab reference standard substance, guarantee high purity and stable batch‑to‑batch consistency for biochemistry analysis experiment. Storage requirement：Store at ‑20℃, keep container tightly sealed, strictly avoid light and moisture. Soluble in DMSO, slightly soluble in water.

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Product Name:	Melatonin
CAS Number:	73-31-4	Chemical Name:	N-Acetyl-5-Methoxytryptamine
Country of Origin:	Made in China
Statement:	Non-Irradiation Non ETO Treatment Non Excipients GMO Free
ITEMS	SPECIFICATIONS	TEST RESULTS	TEST METHOD
Characteristics	White or Off-White Crystalline Powder	Complies	Visual
Identification	Infrared Absorption	Complies	IR
	Ultraviolet Absorption	Complies	UV
	HPLC Identification Test	Complies	HPLC
Melting Point	116ºC~120ºC	118.3ºC	USP<741>
Assay (Dry Basis)	98.5%~101.5%	99.77%	HPLC
Individual Impurities	≤0.1%	0.01%	HPLC
Total Impurities	≤0.5%	0.01%	HPLC
Loss on Drying	≤0.5%	0.08%	USP<731>
Residue on Ignition	≤0.1%	0.06%	USP<281>
Chloride	≤0.02%	<0.02%	USP<221>
Residual Solvents	≤1000ppm	42ppm	GC
Heavy Metals	≤10ppm	Complies	CP2020<0821>
Lead	≤2ppm	Complies	ICP-MS
Total Aerobic Bacteria	≤1000cfu/g	<10cfu/g	GB 4789.2
Mould&Yeast	≤50cfu/g	<10cfu/g	GB 4789.15
Coliform Group	≤0.92MPN/g	<0.3MPN/g	GB4789.3
E.Coli	Absent/25g	Not Detected	GB 4789.38
Salmonella	Absent/25g	Not Detected	GB 4789.4
Staphylococcus	Absent/25g	Not Detected	GB4789.10

0 . 02 %

99.8-100.2%

Packing & Delivery

Company Profile

We are committed to providing customers with cost-effective chemical raw materials. Our factory features a pleasant working environment, complete supporting facilities and sufficient production capacity. The company owns advanced production technology and a team of professional technicians.

Our sales volume has maintained steady growth since establishment. We adhere to the business philosophy of "quality guaranteed, competitive price, customer first", which is fully implemented in our daily operations. We strive to offer customers sufficient supply as well as stable and reliable product quality.

Business Philosophy: Integrity-oriented, win-win cooperation

Enterprise Spirit: Trust, gratitude, equality and mutual respect

Enterprise Mission: Create opportunities for employees, create value for customers, and assume social responsibility

Corporate Values: Exceed customer expectations, foster team spirit, enhance employee value, and undertake social responsibility Shop High Purity EDTA-2na Disodium EDTA Dihydrate Metal Chelating Agent CAS 6381-92-6-Detailed Image 4

FAQ

Q1.How to proceed an order for each product?
First, pls send us an enquiry to let us know your requirements(important);Second, we will send you complete quote including shipping cost;Third, confirm order and send payment/deposit;Four, we will arrange production or deliver goods after receiving bank receipt.

Q2. What's the product quality certificates you can provide?
GMP, ISO22000, HACCP, BRC,KOSHER, MUI HALAL, ISO9001,ISO14001 and Third Party Test Report, such as SGS or BV.

Q3.Are you professional on the export logistic service and documents legalization?
A.More than 10years, with full experience of the logistic & after sales service.
B.Familiar and experience of certicate legalization: CCPIT/Embassy legalization, and pre-shipment inspection Certificate. COC certificates, depends on the buyer request.

Q4. Can you provide samples?
We are able to provide the samples for pre-shipment quality approval , trial production and also support our partner to develop more business together.

Q5. What Brands & Package you can provide?
A.Original brand,Tianjia Brand and also OEM based on the customer request,
B.The packages can be small packages to 1kg/bag or 1kg/tin at buyer demand.

Q6.What's the Payment term?
T/T, L/C,D/P, etc.

Q7. What's the Delivery Condition?
A.EXW, FOB, CIF,CFR CPT, CIP DDU or by DHL/FEDEX/TNT.
B.The shipment can be Mixed FCL, FCL, LCL or by Airline, Vessel and train transportation mode

ECHEMI Editorial Reference

Melatonin is a hormone made by the pineal gland that can activates melatonin receptor. Melatonin plays a role in sleep and possesses important antioxidative and anti-inflammatory properties.

Basic Info

Product Name:

Melatonin

Other Name:

Acetamide,N-[2-(5-methoxy-1H-indol-3-yl)ethyl]-;Acetamide,N-[2-(5-methoxyindol-3-yl)ethyl]-;N-[2-(5-Methoxy-1H-indol-3-yl)ethyl]acetamide;N-Acetyl-5-methoxytryptamine;Melatonin;Melatonine;5-Methoxy-N-acetyltryptamine;N-[2-(5-Methoxyindol-3-yl)ethyl]acetamide;Regulin;Melovine;Circadin;Melatol;NSC 113928;NSC 56423;3-(2-Acetamidoethyl)-5-methoxyindole;Melaxen;Slenyto;942407-96-7;1581233-31-9

CAS No.:

73-31-4

Molecular Formula:

C13H16N2O2

InChIKeys:

InChIKey=DRLFMBDRBRZALE-UHFFFAOYSA-N

Molecular Weight:

232.27800

Exact Mass:

232.28

EC Number:

200-797-7

HScode:

2932999099

Categories:

Characteristics

PSA:

54.12000

XLogP3:

0.8

Appearance:

Solid

Density:

1.269 g/cm³

Melting Point:

117 °C

Boiling Point:

512.8ºC at 760 mmHg

Flash Point:

264ºC

Refractive Index:

1.6

Water Solubility:

>34.8 [ug/mL]

Storage Conditions:

-15ºC

Vapor Pressure:

1.4X10-7 mm Hg at 25 deg C (est)

Toxicity:

LD50 orally in Rabbit: > 3200 mg/kg

See More Melatonin Properties 

Hazard Identification

Classification of the substance or mixture

Not classified.

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)	No symbol.
Signal word	No signal word
Hazard statement(s)	none
Prevention	none
Response	none
Storage	none
Disposal	none

Other hazards which do not result in classification

no data available

Handling and Storage

Precautions for safe handling

Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

Conditions for safe storage, including any incompatibilities

Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.

See More Melatonin Safety Data Sheet 

Seller Information

Business Type:
Distributor

Main Products:
CHEMICALS

Location:
No. 109, Chailu Street, Qingnian Park Subdistrict, Huaian District, Jinan City, Shandong Province 280

Year of Establishment:
2026

Shandong Guozhao Import and Export Co., Ltd., located at No. 280, Chalu Street, Qingnian Park Subdistrict, Huaiyin District, Jinan City, Shandong Province, primarily engages in import and export of goods; sales of chemical products (excluding licensed chemical products); sales of specialty chemical products (excluding hazardous chemicals); sales of plastic products; sales of metal products; sales of building materials; sales of architectural decoration materials; sales of daily-use chemical products; sales of food additives; sales of feed additives; sales of fertilizers; sales of batteries; and general cargo warehousing services (excluding items requiring licensing or approval, such as hazardous chemicals).

Inquiry History

31 Inquiries

Country	Product	Purchase Quantity	Date Posted
United States	High Purity 99% White Powder Melatoninfor Sleeping Promotion Cas 73-31-4 Melatonine	5 MT	Jun 11, 2024
United States	China sleep Melatonine powder API Raw Material 99% Melatonin CAS 73-31-4	5 MT	Jun 11, 2024
Pakistan	melatonin	25 KG	Mar 4, 2026
Spain	Melatonin powder	1 KG	Aug 26, 2026
Germany	Melatonin	500 MG	Aug 25, 2026
Jordan	Melatonin	1 MT	Aug 21, 2026
United Kingdom	melatonin powder	100 G	Jul 6, 2026
Netherlands	Melatonin	50 G	Jun 1, 2026
Lebanon	Melatonin	1 KG	May 9, 2026
Germany	Melatonin	30 G	Mar 17, 2026
Uzbekistan	Melatonine	100 KG	Jan 26, 2026
India	Melatonine	50.00 KG	Jul 16, 2025
United Kingdom	Melatonin	1000 MT	Apr 22, 2025
India	Melatonin	5 KG	Nov 18, 2024
Vietnam	melatonin	5 G	Jul 16, 2026
Netherlands	Melatonin	500 G	Jun 4, 2026
India	Melatonin	50.00 KG	May 11, 2026
Egypt	Melatonin	10 KG	Jan 20, 2026
India	Melatonin	50 KG	Dec 5, 2025
Thailand	melatonin	25 KG	Sep 22, 2025

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High Purity Melatonin CAS 73-31-4 Off-white Powder Biochemical Research Reference Material

Product Description

Seller Information

Inquiry History

Classification of the substance or mixture

GHS label elements, including precautionary statements

Other hazards which do not result in classification

Precautions for safe handling

Conditions for safe storage, including any incompatibilities

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