AFLATOXIN B2
- CAS No.
- 7220-81-7
- Chemical Name:
- AFLATOXIN B2
- Synonyms
- AF B2;2,3,6aB1;8,9,9aB1;AFLATOXIN B2;Aflatoxine B2;AFLATOXIN B2(RG);Aflatoxin B2;AF B2;dihydroaflatoxinb1;Dihydroaflatoxin B1;Dihydroafflatoxin B1
- CBNumber:
- CB0236746
- Molecular Formula:
- C17H14O6
- Molecular Weight:
- 314.29
- MDL Number:
- MFCD00078140
- MOL File:
- 7220-81-7.mol
| Product description | Number | Pack Size | Price |
| Aflatoxin B2 solution certified reference material, 3?μg/mL in benzene:acetonitrile (98:2), ampule of 1?mL | CRM46324 | 1mL | $84.45 |
| Aflatoxin B2 solution 0.5?μg/mL in acetonitrile, analytical standard | 34034 | 2ml | $349 |
| Aflatoxin B2 reference material | 32755 | 5mg | $2070 |
| Aflatoxin B2 ≥98% | 11294 | 1mg | $72 |
| Aflatoxin B2 ≥98% | 11294 | 5mg | $283 |
| More product size | |||
| Melting point | 286-289 °C |
|---|---|
| alpha | D -492° (c = 0.1 in CHCl3) |
| Boiling point | 373.98°C (rough estimate) |
| Density | 1.2564 (rough estimate) |
| refractive index | 1.4800 (estimate) |
| Flash point | 11 °C |
| storage temp. | 2-8°C |
| solubility | DMF: 20 mg/ml; DMF:PBS(pH 7.2)(1:1): 0.5 mg/ml; DMSO: 12 mg/ml |
| form | Solid |
| color | White to off-white |
| Water Solubility | 15mg/L(temperature not stated) |
| Merck | 13,180 |
| BRN | 1355115 |
| Major Application |
cleaning products cosmetics food and beverages personal care |
| InChI | 1S/C17H14O6/c1-20-10-6-11-14(8-4-5-21-17(8)22-11)15-13(10)7-2-3-9(18)12(7)16(19)23-15/h6,8,17H,2-5H2,1H3/t8-,17+/m0/s1 |
| InChIKey | WWSYXEZEXMQWHT-WNWIJWBNSA-N |
| SMILES | [H][C@@]12CCO[C@]1([H])Oc3cc(OC)c4C5=C(C(=O)CC5)C(=O)Oc4c23 |
| LogP | 1.802 (est) |
| CAS DataBase Reference | 7220-81-7 |
| FDA UNII | 7SKR7S646P |
| UNSPSC Code | 85151701 |
| NACRES | NA.24 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS06,GHS08 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H300+H310+H330-H340-H350 | |||||||||
| Precautionary statements | P201-P262-P280-P301+P310+P330-P302+P352+P310-P304+P340+P310 | |||||||||
| PPE | Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter | |||||||||
| Hazard Codes | T+,T,F,Xn | |||||||||
| Risk Statements | 45-26/27/28-39/23/24/25-23/24/25-11-65-48/23/24/25-36/38-46-36-20/21/22 | |||||||||
| Safety Statements | 53-36-45-36/37-26-62-28-16 | |||||||||
| RIDADR | UN 3462 6.1/PG 1 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | GY1722000 | |||||||||
| F | 10 | |||||||||
| HazardClass | 6.1(a) | |||||||||
| PackingGroup | I | |||||||||
| HS Code | 29322090 | |||||||||
| Storage Class | 3 - Flammable liquids | |||||||||
| Hazard Classifications | Acute Tox. 4 Dermal Acute Tox. 4 Inhalation Acute Tox. 4 Oral Eye Irrit. 2 Flam. Liq. 2 |
|||||||||
| Hazardous Substances Data | 7220-81-7(Hazardous Substances Data) | |||||||||
| Toxicity | LD50 orally in day old duckling: 84.8 mg/50 gm body wt (Carnaghan) | |||||||||
| NFPA 704 |
|
AFLATOXIN B2 price More Price(24)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | CRM46324 | Aflatoxin B2 solution certified reference material, 3?μg/mL in benzene:acetonitrile (98:2), ampule of 1?mL | 7220-81-7 | 1mL | $84.45 | 2025-07-31 | Buy |
| Sigma-Aldrich | 34034 | Aflatoxin B2 solution 0.5?μg/mL in acetonitrile, analytical standard | 7220-81-7 | 2ml | $349 | 2025-07-31 | Buy |
| Sigma-Aldrich | 32755 | Aflatoxin B2 reference material | 7220-81-7 | 5mg | $2070 | 2024-03-01 | Buy |
| Cayman Chemical | 11294 | Aflatoxin B2 ≥98% | 7220-81-7 | 1mg | $72 | 2024-03-01 | Buy |
| Cayman Chemical | 11294 | Aflatoxin B2 ≥98% | 7220-81-7 | 5mg | $283 | 2024-03-01 | Buy |
AFLATOXIN B2 Chemical Properties,Uses,Production
Chemical Properties
off-white powder
Chemical Properties
The aflatoxins are a group of molds produced by the fungus Aspergillus flavus. They are natural contaminants of fruits, vegetables, and grains. They are also described as a series of condensed ring heterocyclic compounds. They form colorless to pale yellow crystals. Practically insoluble in water.
Uses
Aflatoxins are naturally occuring mycotoxins produced by various species of the mold Aspergillus, which can be found in legumes, corn, soybeans, rice, milk, and cheese. They are highly carcinogenic substances that are metabolized by the liver to a reactive epoxide intermediate, which produces adducts that modify DNA. Aflatoxin B1 induces transversion of G to T at codon 249 of the p53 tumor suppressor gene. This transversion is common in hepatocellular carcinoma patients living in regions with high levels of aflatoxin contamination. Aflatoxin B2 is the dihydro derivative of aflatoxin B1, a naturally occuring mycotoxin and food contaminant that is a likely pathogen that causes hepatocellular carcinoma.[Cayman Chemical]
Uses
Aflatoxins B1, B2, G1, G2 as secondary metabolites of fungal species such as Aspergillus flavus or Aspergillus parasiticus growing on a variety of foods (peanuts, nuts, spices, cereals). Aflatoxins are a group of very carcinogenic mycotoxins with hepatotoxic effects.
Uses
Aflatoxin B2 is the minor analogue of the blue fluorescent family of bisfuranocoumarin mycotoxins produced by Aspergillus flavus and related species. Alfatoxins are one of the most potent mycotoxins known but are in fact "pre-toxins", requiring metabolic activation to the toxic principle. Aflatoxins are found widely in nature in trace amounts, particularly in grains and nuts. The toxicity of these metabolites was first recognised in the 1950s and their structures elucidated in 1963. Aflatoxins have been extensively reviewed.
Definition
ChEBI: An aflatoxin having a hexahydrocyclopenta[c]furo[3',2':4,5]furo[2,3-h]chromene skeleton with oxygen functionality at positions 1, 4 and 11.
Synthesis Reference(s)
[1] Gang Zhou; E. J. Corey. Short, Enantioselective Total Synthesis of Aflatoxin B2 Using an Asymmetric [3+2]-Cycloaddition Step. J. Am. Chem. Soc. 2005, 127, 34, 11958–11959.
General Description
Aflatoxin B2 is one of the fungal metabolic products produced in food and feed, contaminated byAspergillusspecies.
Safety Profile
Confirmed human carcinogen with experimental tumorigenic data. Poison by ingestion. Mutation data reported. When heated to decomposition it emits acrid smoke and fumes. See also various aflatoxins.
Synthesis
A highly enantioselective [3+2]-cycloaddition reaction of 2,3-dihydrofuran with 1,4-benzoquinones using a chiral oxazaborolidinium triflimidate as catalyst has been developed by Corey and colleagues in 2005, which allows rapid access to a variety of chiral phenolic tricycles (enantiomeric excesses ranging from 91 to 98%). The utility of this new methodology is demonstrated by a short synthesis of the important pentacyclic natural product, aflatoxin B2.[1]
Potential Exposure
Aflatoxins are a group of toxic metabolites produced by certain types of fungi. Aflatoxins are not commercially manufactured; they are naturally occurring contaminants that are formed by fungi on food during conditions of high temperatures and high humidity. Most human exposure to aflatoxins occurs through ingestion of contaminated food. The estimated amount of aflatoxins that Americans consume daily is estimated to be 0.15 0.50 μg. Grains, peanuts, tree nuts, and cottonseed meal are among the more common foods on which these fungi grow. Meat, eggs, milk, and other edible products from animals that consume aflatoxincontaminated feed may also contain aflatoxins. Aflatoxins can also be breathed in
Shipping
UN3172 Toxins, extracted from living sources, solid or liquid, Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required. UN2811 Toxic solids, organic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required.
Incompatibilities
Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides.
Waste Disposal
Consult with environmental regulatory agencies for guidance on acceptable disposal practices. Generators of waste containing this contaminant (≥100 kg/mo) must conform with EPA regulations governing storage, transportation, treatment, and waste disposal. Use of oxidizing agents, such as hydrogen peroxide or 5% sodium hypochlorite bleach. Acids and bases may also be used.
AFLATOXIN B2 Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Hebei Chuanghai Biotechnology Co., Ltd | +8615350571055 | Sibel@chuanghaibio.com | China | 8753 | 58 |
| Shaanxi Dideu Medichem Co. Ltd | +86-29-87569262 +86-15003564040 | 1056@dideu.com | China | 3982 | 58 |
| Moxin Chemicals | +86-17320513646 +8617320513646 | anna@molcoo.com | China | 10000 | 58 |
| ATK CHEMICAL COMPANY LIMITED | +undefined-21-51877795 | ivan@atkchemical.com | China | 33024 | 60 |
| Shanghai Zheyan Biotech Co., Ltd. | 18017610038 | zheyansh@163.com | CHINA | 3619 | 58 |
| Chengdu GLP biotechnology Co Ltd | 028-87075086 13350802083 | scglp@glp-china.com | CHINA | 1824 | 58 |
| Hubei Ipure Biology Co., Ltd | +8613367258412 | ada@ipurechemical.com | China | 10236 | 58 |
| HONG KONG IPURE BIOLOGY CO.,LIMITED | 86 18062405514 18062405514 | ada@ipurechemical.com | CHINA | 3461 | 58 |
| Finetech Industry Limited | +86-27-8746-5837 +8619945049750 | info@finetechnology-ind.com | China | 9629 | 58 |
| Shijiazhuang Tongyang Import and Export Co., LTD | 18031361688; | admin@sjztongyang.com | China | 977 | 58 |
View Lastest Price from AFLATOXIN B2 manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-02-02 | AFLATOXIN B2
7220-81-7
|
US $0.10 / KG | 0.1KG | 98%HPLC | 20tons | Shaanxi Dideu Medichem Co. Ltd | |
 |
2026-01-30 | AFLATOXIN B2
7220-81-7
|
US $1.00 / KG | 1KG | 99% | 10 mt | Hebei Chuanghai Biotechnology Co., Ltd | |
 |
2025-12-16 | Aflatoxin B2 impurity
7220-81-7
|
US $0.00-0.00 / mg | 10mg | 98 | 10000000 | Moxin Chemicals |
-
- AFLATOXIN B2
7220-81-7
- US $0.10 / KG
- 98%HPLC
- Shaanxi Dideu Medichem Co. Ltd
-
- AFLATOXIN B2
7220-81-7
- US $1.00 / KG
- 99%
- Hebei Chuanghai Biotechnology Co., Ltd
-
- Aflatoxin B2 impurity
7220-81-7
- US $0.00-0.00 / mg
- 98
- Moxin Chemicals
