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4-CHLOROPHENYL ISOTHIOCYANATE

4-CHLOROPHENYL ISOTHIOCYANATE structure

CAS No.: 2131-55-7

Chemical Name:: 4-CHLOROPHENYL ISOTHIOCYANATE

Synonyms: P-CHLOROPHENYL ISOTHIOCYANATE;Sch-20350;AKOS BBS-00004437;4-Chlor-phenyl-isothiocyanat;4-Chloroisothiocyanatobenzene;4-CHLOROPHENYL ISOTHIOCYANATE;4-(Isothiocyanato)chlorobenzene;4-ChlorophenylIsothiocyanate>4-Chlorophenyl isothiocyate, 99%;4-Chlorophenyl isothiocyanate 99%

CBNumber:: CB2274405

Molecular Formula:: C7H4ClNS

Molecular Weight:: 169.63

MDL Number:: MFCD00004810

MOL File:: 2131-55-7.mol

MSDS File:: SDS

Last updated:2026-06-04 16:00:12

Product description	Number	Pack Size	Price
4-Chlorophenyl isothiocyanate 99%	253782	5g	$92.4
4-Chlorophenyl Isothiocyanate >98.0%(GC)	I0167	25g	$191
4-Chlorophenyl isothiocyanate >98%	OR30198	1g	$21
4-Chlorophenyl isothiocyanate >98%	OR30198	5g	$24
4-Chlorophenyl isothiocyanate >98%	OR30198	25g	$71
More product size

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4-CHLOROPHENYL ISOTHIOCYANATE Properties

Melting point	42-44 °C(lit.)
Boiling point	135-136 °C24 mm Hg(lit.)
Density	1.3181 (rough estimate)
refractive index	1.6100 (estimate)
Flash point	110 °C
storage temp.	Refrigerator (+4°C)
form	powder to crystal
color	White to Light yellow
Sensitive	Moisture Sensitive
BRN	471610
InChI	InChI=1S/C7H4ClNS/c8-6-1-3-7(4-2-6)9-5-10/h1-4H
InChIKey	MZZVFXMTZTVUFO-UHFFFAOYSA-N
SMILES	C1(Cl)=CC=C(N=C=S)C=C1
CAS DataBase Reference	2131-55-7(CAS DataBase Reference)
EWG's Food Scores	1
UNSPSC Code	12352100
NACRES	NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS06,GHS08

Signal word

Danger

Hazard statements

H301+H311+H331-H315-H317-H319-H334-H335

Precautionary statements

P261-P280-P301+P310-P302+P352+P312-P304+P340+P311-P305+P351+P338

target organs

Respiratory system

PPE

Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges

Hazard Codes

Risk Statements

23/24-36/37/38-42-42/43-23/24/25

Safety Statements

22-26-36/37/39-45-36/37

RIDADR

UN 2206 6.1/PG 2

WGK Germany

RTECS

NX8473000

10-21-19

HazardClass

PackingGroup

III

HS Code

29309090

Storage Class

6.1C - Combustible acute toxic Cat.3
toxic compounds or compounds which causing chronic effects

Hazard Classifications

Acute Tox. 3 Dermal
Acute Tox. 3 Inhalation
Acute Tox. 3 Oral
Eye Irrit. 2
Resp. Sens. 1
Skin Irrit. 2
Skin Sens. 1
STOT SE 3

Limited Quantities

5.0 kg (11 lbs) (solid)

Excepted Quantities

Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L)

NFPA 704

	1
3		0

4-CHLOROPHENYL ISOTHIOCYANATE price More Price(40)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	253782	4-Chlorophenyl isothiocyanate 99%	2131-55-7	5g	$92.4	2026-04-30	Buy
TCI Chemical	I0167	4-Chlorophenyl Isothiocyanate >98.0%(GC)	2131-55-7	25g	$191	2026-04-30	Buy
Apolloscientific	OR30198	4-Chlorophenyl isothiocyanate >98%	2131-55-7	1g	$21	2026-06-04	Buy
Apolloscientific	OR30198	4-Chlorophenyl isothiocyanate >98%	2131-55-7	5g	$24	2026-06-04	Buy
Apolloscientific	OR30198	4-Chlorophenyl isothiocyanate >98%	2131-55-7	25g	$71	2026-06-04	Buy

Product number	Packaging	Price	Buy
253782	5g	$92.4	Buy
I0167	25g	$191	Buy
OR30198	1g	$21	Buy
OR30198	5g	$24	Buy
OR30198	25g	$71	Buy

4-CHLOROPHENYL ISOTHIOCYANATE Chemical Properties,Uses,Production

Chemical Properties

light yellow crystalline mass

Uses

4-Chlorophenyl isothiocyanate has been used in the synthesis of thiosemicarbazides. It was also used as building block for the synthesis of N-alkylated 2-arylaminobenzimidazoles.

Synthesis Reference(s)

Chemistry Letters, 6, p. 573, 1977
Organic Syntheses, Coll. Vol. 1, p. 165, 1941
Tetrahedron Letters, 38, p. 1597, 1997 DOI: 10.1016/S0040-4039(97)00121-4

Purification Methods

Check the IR first to see if free from OH frequencies. Triturate it with pet ether (b 30-60o) and decant the solvent. Repeat this 5times. The combined extracts are evaporated under reduced pressure to give almost pure compound as a readily crystallisable oil with a pleasant anise odour. It can be recrystallised from the minimum volume of EtOH at 50o (do not boil too long as it could react). It can be purified by vacuum distillation. [van der Kerk et al. Org Synth Coll Vol V 223 1973, Beilstein 12 IV 1214.] It is an IRRITANT and causes dermatitis; use gloves.

4-CHLOROPHENYL ISOTHIOCYANATE Preparation Products And Raw materials

Raw materials

Preparation Products

Naphthol AS-E N-(4-CHLOROPHENYL)-N'-(4H-1,2,4-TRIAZOL-4-YL)THIOUREA 3-(4-chlorophenyl)-5,6-dimethyl-2-thioxo-2,3-dihydrothieno[2,3-d]pyrimidin-4(1H)-one 1-(4-chlorophenyl)-3-(2,2-dimethoxyethyl)thiourea 3-(4-chlorophenyl)-2-sulfanyl-5,6,7,8-tetrahydro[1]benzothieno[2,3-d]pyrimidin-4(3H)-one

4-CHLOROPHENYL ISOTHIOCYANATE Suppliers

Global( 174)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Capot Chemical Co.,Ltd.	+86-（0）57185586718 +86-13336195806	sales@capot.com	China	29640	60
ATK CHEMICAL COMPANY LIMITED	+undefined-21-51877795	ivan@atkchemical.com	China	33024	60
career henan chemical co	+86-0371-86658258 +8613203830695	sales@coreychem.com	China	29812	58
Changzhou Ansciep Chemical Co., Ltd.	+86 519 86305871	sales@ansciepchem.com	CHINA	4241	58
Accela ChemBio Inc.	+1-858-6993322	info@accelachem.com	United States	21193	58
Nanjing jinheyou Trading Co., Ltd.	15705188088	admin@jheyou.com	CHINA	1268	58
CONIER CHEM AND PHARMA LIMITED	+8618523575427	sales@conier.com	China	49979	58
Shaanxi Dideu Medichem Co. Ltd	+86-29-87569262 +86-15003564040	1056@dideu.com	China	3972	58
Fuxin Pharmaceutical	+86-021-021-50872116 +8613122107989	contact@fuxinpharm.com	China	9976	58
Shanghai Yudiao Chemistry Technology Co.,Ltd	02137285211 18964703211	info@yudiaochem.com	CHINA	238	58

Supplier	Advantage
Capot Chemical Co.,Ltd.	60
ATK CHEMICAL COMPANY LIMITED	60
career henan chemical co	58
Changzhou Ansciep Chemical Co., Ltd.	58
Accela ChemBio Inc.	58
Nanjing jinheyou Trading Co., Ltd.	58
CONIER CHEM AND PHARMA LIMITED	58
Shaanxi Dideu Medichem Co. Ltd	58
Fuxin Pharmaceutical	58
Shanghai Yudiao Chemistry Technology Co.,Ltd	58

View Lastest Price from 4-CHLOROPHENYL ISOTHIOCYANATE manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2026-02-02	4-Chlorophenyl isothiocyanate 2131-55-7		10mg	99%HPLC	2000tons	Shaanxi Dideu Medichem Co. Ltd
2019-11-08	4-CHLOROPHENYL ISOTHIOCYANATE 2131-55-7		1g	99.5%min	20kg/week	Nanjing jinheyou Trading Co., Ltd.
2019-07-06	4-CHLOROPHENYL ISOTHIOCYANATE 2131-55-7	$1.00	1kg	95%-99%		Career Henan Chemical Co

4-Chlorophenyl isothiocyanate
2131-55-7
99%HPLC
Shaanxi Dideu Medichem Co. Ltd

4-CHLOROPHENYL ISOTHIOCYANATE
2131-55-7
$0.00
99.5%min
Nanjing jinheyou Trading Co., Ltd.

4-CHLOROPHENYL ISOTHIOCYANATE
2131-55-7
$1.00
95%-99%
Career Henan Chemical Co

4-CHLOROPHENYL ISOTHIOCYANATE Spectrum

4-CHLOROPHENYL ISOTHIOCYANATE(2131-55-7)MS 4-CHLOROPHENYL ISOTHIOCYANATE(2131-55-7)¹HNMR 4-CHLOROPHENYL ISOTHIOCYANATE(2131-55-7)¹³CNMR 4-CHLOROPHENYL ISOTHIOCYANATE(2131-55-7)IR1 4-CHLOROPHENYL ISOTHIOCYANATE(2131-55-7)IR2 4-CHLOROPHENYL ISOTHIOCYANATE(2131-55-7)Raman

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4-Chlorophenyl isothiocyanate 99% 4-Chlorophenyl isothiocyate, 99% 4-CHLOROPHENYL ISOTHIOCYANATE AKOS BBS-00004437 ISOTHIOCYANIC ACID 4-CHLOROPHENYL ESTER 4-Chlorophenyl #niso-thiocyanate ISOTHIOCYANIC ACID 4-CHLOROPHENYL ESTER 95+% 4-Chloroisothiocyanatobenzene 4-Chlor-phenyl-isothiocyanat Benzene, 1-chloro-4-isothiocyanato- Isothiocyanic acid, p-chlorophenyl ester isothiocyanicacid,p-chlorophenylester 1-CHLORO-4-ISOTHIOCYANATO-BENZENE Sch-20350 4-(Isothiocyanato)chlorobenzene 4-Chlorophenyl isothiocyanate, 99% 25GR 4-Chlorophenyl isothiocyanate,99% 4-ChlorophenylIsothiocyanate> P-CHLOROPHENYL ISOTHIOCYANATE 2131-55-7 Reagents for Protein Sequencing Proteomics and Protein Expression Protein Analysis Protein Sequencing Organic Building Blocks Sulfur Compounds ISOTHIOCYANATE Building Blocks BioChemical Thiocyanates/Isothiocyanates Proteomics Organic Building Blocks Protein Sequencing Protein Structural Analysis Reagents for Protein SequencingOrganic Building Blocks Sulfur Compounds Thiocyanates/Isothiocyanates Building Blocks Chemical Synthesis Organic Building Blocks Sulfur Compounds Protein Sequencing Reagents for Protein Sequencing Protein Structural Analysis