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Riboflavin vitamin B2

Name: Riboflavin vitamin B2
Brand: East Chemsources
SKU: pr2502161027
Availability: InStock

18 Inquiries

Unit Price: Get Latest Price 

CAS No.:

83-88-5

Grade:

pharmaceutical grade/food grade

Content:

99%

Port:

Qingdao

Brand:

East Chemsources

Packaging:

25kg per bag

Price valid (until):

2025-03-16

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QINGDAO EAST CHEMSOURCES TRADE CO.,LTD

Company Type:

Trader

Location:

China

Qualification:

Main Products:

Food additives,Pharmaceutical raw materials,Chemicals,Comestic raw materials

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Product Description
Seller Information
Inquiry History

Description

Product Detail

Appearance Yellow or orange yellow crystalline powder Conforms
Identification Intense yellowish - green fluorescence that disappears upon the addition of mineral acids or alkalies. conforms
Lumiflavin ≤0.025 0.008
Specific rotation - 115°~ - 135° - 127.1°
Assay,% 98.0 - 102.0 98.3
Loss on drying,% ≤1.5 0.31
Residue on ignition,% ≤0.3 0.07
Lead,ppm ≤1.0 <0.02
Heavy metals(Pb),ppm ≤10 <10
Total aerobic microbial count,CFU/g ≤1000 <10
Yeasts and mould count,CFU/g ≤100 <10
E. coli Negative ND
Conclusion The above certificate of analysis is in compliance with USP43 standard.

Company Introduction: Founded in 2008, East Chemsources Limited is a professional manufacturer of supplier in food and beverage, pharmaceuticals, cosmetics and other industries. Through more than four years development, our company has developed from single product at first to providing solution to finished products now, is committed to providing solutions for success and growth through long term relationships.
Currently, our products have been exported to more than 50 countries all over the world. Our service is accomplished by providing good quality solution that matches the specifications of our clients at competitive price. Our products will derive from trusted sources and arrive to our clients in time and well arranged manner, be creating the greatest benefits for our customers.
Whether your project is large or small, whether it needs one, several or all of our disciplines you will find our level of dedication to a quality result to be the same. We are looking forward to your sincere cooperation and participation.
Our Service:
1. High quality with the competitive price.
2. Professional and experienced business services.
3. Prompt delivery within 2-3 weeks (1 weeks is available for ready stock)
4. Quick response to client inquiries
5. Free samples and shipping documents in accordance with the regulations of different countries
6. Adequate product inventory

Shop High quality factory price Sodium hyaluronate-Detailed Image 1

Basic Info

Product Name:

Riboflavin

Other Name:

Riboflavin;Riboflavine;Benzo[g]pteridine,riboflavin deriv.;Beflavine;Flaxain;Hyre;Lactoflavin;Lactoflavine;Ribipca;Riboderm;Vitamin B2;Vitamin G;Flavaxin;6,7-Dimethyl-9-D-ribitylisoalloxazine;Benzo[g]pteridine-2,4(3H,10H)-dione,7,8-dimethyl-10-(D-ribo-2,3,4,5-tetrahydroxypentyl)-;Ribosyn;Vitaflavine;Ribotone;Ribovel;Beflavin;Ribocrisina;Vitasan B2;Lactobene;Flavin BB;Russupteridine yellow III;1-Deoxy-1-(3,4-dihydro-7,8-dimethyl-2,4-dioxobenzo[g]pteridin-10(2H)-yl)-D-ribitol;6,7-Dimethyl-9-ribitylisoalloxazine;E 101;C.I. Food Yellow 15;Food Yellow 15;(-)-Riboflavin;C.I. 50900;E 101 (dye);San Yellow B;NSC 33298;NCI 0033298;D-Ribitol,1-deoxy-1-(3,4-dihydro-7,8-dimethyl-2,4-dioxobenzo[g]pteridin-10(2H)-yl)-;7,8-Dimethyl-10-ribitylisoalloxazine;Ricrolin;Riboflavin E101;Riboflavin FP;Riboflavin F;7,8-Dimethyl-10-(1,2,3,4,5-pentahydroxypentyl)benzo[g]pteridine-2,4-dione;130609-39-1;535950-32-4;890044-91-4;1093390-18-1

CAS No.:

83-88-5

Molecular Formula:

C17H20N4O6

InChIKeys:

InChIKey=AUNGANRZJHBGPY-SCRDCRAPSA-N

Molecular Weight:

376.36

Exact Mass:

376.36

EC Number:

201-507-1

ICSC Number:

1454

NSC Number:

758973

DSSTox ID:

DTXSID8021777

Color/Form:

Fine orange-yellow needles from 2N acetic acid, alcohol, water, or pyridine ... three different crystal forms|Orange to yellow crystals or needles

HScode:

29362300

Categories:

Nutrition Supplements

Characteristics

PSA:

161.56000

XLogP3:

-1.67520

Appearance:

Yellow to orange Powder

Density:

1.2112 (rough estimate)

Melting Point:

278-279 °C (decomp)

Flash Point:

9℃

Refractive Index:

-135 ° (C=0.5, JP Method)

Water Solubility:

0.07 g/L (20 ºC)

Storage Conditions:

2-8°C

Toxicity:

LD50 in rats (g/kg): >10 orally, 5.0 s.c., 0.56 i.p. (Unna, Greslin)

Specific rotation:

-135 º (c=5, 0.05 M NaOH)

Odor:

Slight odor

Taste:

Bitter

Dissociation Constants:

pKa = 10.2; pKb = 1.7

Experimental Properties:

Visible or ultraviolet radiation of alkaline solutions causes the formation of lumiflavine ... whereas irradiation of acid or neutral solutions gives rise to the production of lumichrome ... togther with varying amounts of lumiflavine|Sensitive to alkalies; stable to mineral acids in the dark|In solution, riboflavin has an intense greenish-yellow flourescence|In alkaline solution it is readily soluble but quite unstable to heat and to light forming lumiflavin, a fluorescent degradation product. Riboflavin is nore stable to heat in acid solution, particularly from pH 1.0 to 6.5 but upon irradiation forms lumichrome. Riboflavin is readily adsorbed from acid or neutral solution on such agents as frankonite, fuller's earth, and certain zeolites, and eluted with acetone or pyridine solutions.|For more Other Experimental Properties (Complete) data for Riboflavin (6 total), please visit the HSDB record page.

Physical Dangers:

Dust explosion possible if in powder or granular form, mixed with air.

See More Riboflavin 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

NO open flames. Closed system, dust explosion-proof electrical equipment and lighting. Prevent deposition of dust. 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

Well closed.Solutions of riboflavin should be protected from air and light. Riboflavin tablets should be stored in tight, light-resistant containers at a temperature less than 40 degrees C, preferably between 15-30 degrees C.

See More Riboflavin Safety Data Sheet 

Seller Information

Business Type:
Trader

Main Products:
Food additives,Pharmaceutical raw materials,Chemicals,Comestic raw materials

Location:
Room 501, Unit 6, No. 40, hushan road,Licang,Qingdao

Payment Terms:
TT against copy of documents,TT against B/L draft before shipment,100% TT in advance

Average lead Time:
10

Total Annual Revenue:
$1 million-$2.5 million

Total Employees:
11-50

Year of Establishment:
2017

QINGDAO EASTCHEMSORCES TRADE LIMITED is a leading Manufactory supplier of Sorbitol, Citric acid, Sodium hypochlorite based in Qingdao, Shandong, China. With a commitment to quality and customer satisfaction, QINGDAO EASTCHEMSORCES TRADE LIMITED has become a trusted name in the industry. Our product line includes a range of high-quality Sorbitol, Citric acid, Sodium hypochlorite, which are available at competitive prices. QINGDAO EASTCHEMSORCES TRADE LIMITED has established itself as a reliable supplier of chemical products on the echemi.com.

Inquiry History

18 Inquiries

Country	Product	Purchase Quantity	Date Posted
United States	Vitamin B2 80% FG	1000 KG	Oct 2, 2025
India	Vitamin B2	5 TON	Jul 2, 2025
United States	Vitamin B2	750 KG	Jun 17, 2025
India	Vitamin B2	1 MT	Mar 24, 2025
Egypt	Riboflavin	50.00 KG	Mar 20, 2025
Moldova	VITAMIN B2 BASE	1 KG	Mar 13, 2025
India	Bacillus subtilis KCCM 10445	1	Jan 25, 2025
Cameroon	RIBOFLAVIN	25 KG	Jan 3, 2025
India	Vitamin B2	6 40' Fcl	Dec 31, 2024
India	Vitamin B2	5 TON	Nov 25, 2024
Egypt	Vitamin B2 Riboflavin 98%	500.00 KG	Jan 28, 2026
India	Vitamin B2	1.00 KG	Jan 9, 2026
United States	Vitamin B2 (Riboflavin) * CAS Number: 83-88-5	2000 KG	Oct 2, 2025
Peru	Riboflavin vitamin B2 with ISO Halal kosher	25 KG	Nov 7, 2023
Palestine	Vitamin B2	250 KG	May 22, 2024
United Arab Emirates	Vitamin B2	1 MT	Apr 1, 2024
Pakistan	VITAMIN B2	100 KG	Feb 18, 2024
United States	Vitamin B2	1.00 KG	Jul 14, 2023

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Riboflavin vitamin B2

Product Description

Seller Information