ChemicalBook >> CAS DataBase List >>5-Chloro-2-furaldehyde

5-Chloro-2-furaldehyde

CAS No.
21508-19-0
Chemical Name:
5-Chloro-2-furaldehyde
Synonyms
5-chlorofuran-2-carbaldehyde;EOS-61611;5-Chlorofurfural;TIMTEC-BB SBB004223;5-Chloro-2-furaldehyde;5-CHLORO-2-FURALDEHYDE,97%;5-Chloro-2-furaldehyde 98%;5-chlorofuran-2-carbaldeyde;5-CHLORO-2-FURALDEHYDE, 98+%;5-Chloro-2-furancarboxaldehyde
CBNumber:
CB7466429
Molecular Formula:
C5H3ClO2
Molecular Weight:
130.53
MDL Number:
MFCD02752599
MOL File:
21508-19-0.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-09-12 18:54:58

5-Chloro-2-furaldehyde Properties

Melting point 34-37 °C (lit.)
Boiling point 70°C 10mm
Density 1.361±0.06 g/cm3(Predicted)
Flash point 190 °F
storage temp. 2-8°C
solubility Acetone (Slightly), Methanol (Slightly)
form Crystalline Powder
color White to off-white
Water Solubility Insoluble in water.
Sensitive Air Sensitive
BRN 108401
Exposure limits ACGIH: STEL 1000 ppm
OSHA: TWA 1000 ppm(1900 mg/m3)
NIOSH: IDLH 3300 ppm; TWA 1000 ppm(1900 mg/m3)
InChI 1S/C5H3ClO2/c6-5-2-1-4(3-7)8-5/h1-3H
InChIKey DGAUAVDWXYXXGQ-UHFFFAOYSA-N
SMILES Clc1ccc(C=O)o1
UNSPSC Code 12352100
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P261-P264-P271-P280-P302+P352-P305+P351+P338
target organs Respiratory system
PPE dust mask type N95 (US), Eyeshields, Gloves
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26-36
WGK Germany  3
HS Code  29321900
Storage Class 11 - Combustible Solids
Hazard Classifications Eye Irrit. 2
Skin Irrit. 2
STOT SE 3
NFPA 704
1
2 0

5-Chloro-2-furaldehyde price More Price(38)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 531456 5-Chloro-2-furaldehyde 98% 21508-19-0 1g $60.5 2023-01-07 Buy
TCI Chemical C1721 5-Chloro-2-furaldehyde min. 98.0 % 21508-19-0 1G $69 2026-04-30 Buy
TCI Chemical C1721 5-Chloro-2-furaldehyde min. 98.0 % 21508-19-0 5G $207 2026-04-30 Buy
TRC TRC-C381980-50MG 5-Chloro-2-furaldehyde 21508-19-0 50mg $65 2026-06-03 Buy
TRC TRC-C381980-500MG 5-Chloro-2-furaldehyde 21508-19-0 500mg $122 2026-06-03 Buy
Product number Packaging Price Buy
531456 1g $60.5 Buy
C1721 1G $69 Buy
C1721 5G $207 Buy
TRC-C381980-50MG 50mg $65 Buy
TRC-C381980-500MG 500mg $122 Buy

5-Chloro-2-furaldehyde Chemical Properties, Uses, Production

Synthesis

Synthetic route of 5-CHLORO-2-FURALDEHYDE

Furfural (30 mmol) and ZnCl₂ (30 mmol) were dissolved in AcOH (30 mL) and stirred at room temperature. After 1 hour, a small amount of substrate (10 mmol) in acetic acid (5 mL) was added. The mixture was stirred at 70°C for 24 hours and diluted with Et₂O (100 mL), and washed successively with 0.1 N Na₂S₂O₃ (50 mL), 0.1 N NaHCO₃ (20 mL), and brine (20 mL).

The organic phase was dried (Na₂SO₄) to remove the solvent, yielding a crude product. This crude product was purified by column chromatography or vacuum distillation to obtain 5-CHLORO-2-FURALDEHYDE, in 10% yield.

Chemical Properties

White to yellow powder

Uses

(+)-1-Deoxynojirimycin hydrochloride interferes with normal processing of N-linked glycoproteins, producing reduced amounts of complex type oligosaccharides.

Uses

5-Chloro-2-furaldehyde may be used as an internal standard during the analysis of furanic compounds by reversed-phase-high performance liquid chromatography–diode array detection (RP-HPLC–DAD) method.

General Description

5-Chloro-2-furaldehyde is also known as 5-chlorofurfural. It reacts with aniline and aniline hydrochloride to form bis-(phenylamino) derivatives, without the furan ring cleavage. It also undergoes coupling with ethyl acetoacetate to form the corresponding ethyl bis-acetoacetate.

References

[1] Chemistry - A European Journal, 2016, vol. 22, # 1, p. 129 - 133
[2] Patent: WO2004/33440, 2004, A1. Location in patent: Page 238
[3] Patent: US2004/147559, 2004, A1. Location in patent: Page 121
[4] Patent: US2004/106794, 2004, A1. Location in patent: Page 122
[5] Patent: WO2005/66147, 2005, A1. Location in patent: Page/Page column 207

Global Suppliers ( 103)
Supplier Tel Email Country ProdList Advantage
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
Meryer (Shanghai) Chemical Technology Co., Ltd. 4006356688 18621169109 market03@meryer.com China 40202 62
Alfa Aesar 400-6106006 saleschina@alfa-asia.com China 30103 84
Energy Chemical 400-0056266 sales8178@energy-chemical.com China 44850 61
Shanghai Hanhong Scientific Co.,Ltd. 021-54306202 13764082696 info@hanhongsci.com China 42917 64
Syntechem Co.,Ltd info@syntechem.com China 12973 57
Maya High Purity Chemicals +86 (573) 82222445 (0)18006601000 452520369 sales@maya-r.com China 11693 57
Nanjing Chemrui Pharmtech Co., Ltd. 86-25-58849758 13851795789 sales@chemrui.com China 47 62
Thermo Fisher Scientific 800-810-5118 cnchemical@thermofisher.com China 17752 75
Beijing innoChem Science & Technology Co.,Ltd. 400-810-7969 010-59572699 ningzi.li@inno-chem.com.cn China 6122 55

View Latest Price from 5-Chloro-2-furaldehyde manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
5-CHLORO-2-FURALDEHYDE pictures 2020-01-09 5-CHLORO-2-FURALDEHYDE
21508-19-0
$1.00 1KG 99% 200kg Career Henan Chemical Co
5-CHLORO-2-FURALDEHYDE pictures 2019-11-19 5-CHLORO-2-FURALDEHYDE
21508-19-0
1g 95%min 20kg/month Nanjing jinheyou Trading Co., Ltd.

5-Chloro-2-furaldehyde Spectrum

TIMTEC-BB SBB004223 5-CHLORO-2-FURALDEHYDE,97% 5-CHLORO-2-FURALDEHYDE, 98+% 5-Chloro-2-furaldehyde, 98%, stab. with 2% ethanol 5-Chloro-2-furaldehyde,97%,stabilized 5-Chloro-2-furaldehyde, stabilized, 97% 5-chlorofuran-2-carboxaldehyde 5-Chloro-2-furaldehyde, stabilized, 97% 1GR 5-Chloro-2-furancarboxaldehyde 5-Chlorofurfural 5-Chloro-2-furaldehyde 98% 5-Chloro-2-furaldehyde, stabilized with 2% ethanol EOS-61611 2-Furancarboxaldehyde, 5-chloro- 5-CHLORO-2-FURALDEHYDE ISO 9001:2015 REACH 5-chlorofuran-2-carbaldeyde 5-chlorofuran-2-carbaldehyde 5-Chloro-2-furaldehyde 21508-19-0 Building Blocks Heterocyclic Building Blocks Furans Building Blocks Furans FuransHeterocyclic Building Blocks Halogenated Heterocycles Heterocyclic Building Blocks Aldehydes Building Blocks C1 to C6 C4 to C7 C4 to C8 Carbonyl Compounds Chemical Synthesis Halogenated Heterocycles Heterocyclic Building Blocks Organic Building Blocks