2,3,5,6-Tetrachloropyridine

Modify Date: 2026-07-02 08:04:37

2,3,5,6-Tetrachloropyridine structure	Common Name	2,3,5,6-Tetrachloropyridine
	CAS Number	2402-79-1	Molecular Weight	216.880
	Density	1.7±0.1 g/cm3	Boiling Point	253.7±35.0 °C at 760 mmHg
	Molecular Formula	C₅HCl₄N	Melting Point	90.5°C
	MSDS	N/A	Flash Point	131.7±11.5 °C

This table lists Chinese names, IUPAC names and various aliases of this chemical substance.

Name	2,3,5,6-Tetrachloropyridine
Synonym	More Synonyms

This table shows physicochemical parameters including melting point, boiling point, density, solubility and optical rotation. Missing data is marked as N/A.

Density	1.7±0.1 g/cm3
Boiling Point	253.7±35.0 °C at 760 mmHg
Melting Point	90.5°C
Molecular Formula	C₅HCl₄N
Molecular Weight	216.880
Flash Point	131.7±11.5 °C
Exact Mass	214.886307
PSA	12.89000
LogP	3.38
Vapour Pressure	0.0±0.5 mmHg at 25°C
Index of Refraction	1.588
InChIKey	FATBKZJZAHWCSL-UHFFFAOYSA-N
SMILES	Clc1cc(Cl)c(Cl)nc1Cl

This table provides MSDS information including hazard classification, first‑aid, fire‑fighting, spill handling, operation and storage instructions.

2,3,5,6-Tetrachloropyridine MSDS(Chinese)

This table summarizes toxicological test data, acute & chronic toxicity and ecological hazard parameters for this chemical.

CHEMICAL IDENTIFICATION

RTECS NUMBER :: UT8225000

CHEMICAL NAME :: Pyridine, 2,3,5,6-tetrachloro-

CAS REGISTRY NUMBER :: 2402-79-1

BEILSTEIN REFERENCE NO. :: 0129639

LAST UPDATED :: 199701

DATA ITEMS CITED :: 3

MOLECULAR FORMULA :: C5-H-Cl4-N

MOLECULAR WEIGHT :: 216.87

WISWESSER LINE NOTATION :: T6NJ BG CG EG FG

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 1150 mg/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity) Behavioral - antipsychotic Liver - fatty liver degeneration

REFERENCE :: TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 11,361,1967 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X5385 No. of Facilities: 3 (estimated) No. of Industries: 1 No. of Occupations: 7 No. of Employees: 312 (estimated) No. of Female Employees: 6 (estimated)

This table covers safety warnings, protective measures, incompatible substances and disposal guidelines for this compound.

Hazard Codes	Xi: Irritant;
Risk Phrases	R20/21/22;R36/37/38;R51/53
Safety Phrases	S26-S36/37/39-S60-S61
RIDADR	2811
RTECS	UT8225000
Packaging Group	III
Hazard Class	6.1
HS Code	2933399090

This table presents publicly reported synthetic routes, reaction conditions, reactants and product information of the compound.

This table lists upstream starting materials and downstream derivative products related to this chemical.

Precursor 9
CAS#:2176-62-7 Perchloropyridine CAS#:41797-97-1 methyl 4-cyano-... CAS#:74555-97-8 ammonium salt o... CAS#:30332-35-5 2,3,5,6-Tetrach...
CAS#:107-13-1 Acrylonitrile CAS#:76-02-8 Trichloroacetyl... CAS#:23995-94-0 4-Bromo-2,3,5,6... CAS#:31279-12-6 tetrachloro-4-p...
CAS#:16063-70-0 2,3,5-Trichloro...
DownStream 10
CAS#:23995-94-0 4-Bromo-2,3,5,6... CAS#:2921-88-2 Clorpyrifos CAS#:6515-38-4 3,5,6-Trichloro... CAS#:16063-70-0 2,3,5-Trichloro...
CAS#:2457-47-8 3,5-Dichloropyridine CAS#:2176-62-7 Perchloropyridine CAS#:72863-84-4 PYRIDINE, 2,3,5... CAS#:75348-52-6 3,5,6-trichloro...
CAS#:51066-53-6 3,5-dichloro-2,... CAS#:642982-66-9 4-(3,5,6-trichl...

This table shows customs‑related data including HS‑code, tariff and regulatory conditions for import and export.

HS Code	2933399090
Summary	2933399090. other compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

This table contains target information, in‑vitro & in‑vivo assay data for this compound.

Name: Cytochrome P450 Family 1 Subfamily A Member 2 (CYP1A2) small molecule antagonists: lu...
Source: 824
External Id: CYP273

Name: qHTS assay to identify small molecule antagonists of the peroxisome proliferator-acti...
Source: 824
Target: N/A
External Id: PPARGV841

Name: qHTS assay to identify small molecule agonists of the TGF-beta/Smad signaling pathway...
Source: 824
Target: N/A
External Id: TGF788

Name: qHTS assay to identify small molecule antagonists of the TGF-beta/Smad signaling path...
Source: 824
Target: N/A
External Id: TGF602

Name: qHTS assay to test for compound auto fluorescence at 535 nm (green) in HEK293 cell fr...
Source: 824
Target: N/A
External Id: SPEC167MG

Name: p53 small molecule agonists, cell-based qHTS assay: qHTS cell viability counter scree...
Source: 824
Target: N/A
External Id: P53600

Name: qHTS assay to identify small molecule agonists of the peroxisome proliferator-activat...
Source: 824
Target: N/A
External Id: PPARDV813

Name: qHTS assay to test for compound auto fluorescence at 590 nm (red) in HEK293 cell free...
Source: 824
Target: N/A
External Id: SPEC167MR

Name: p53 small molecule agonists, cell-based qHTS assay with rat liver microsomes: qHTS ce...
Source: 824
Target: N/A
External Id: P53MS958

Name: qHTS assay to test for compound auto fluorescence at 535 nm (green) in HEK293 cells
Source: 824
Target: N/A
External Id: SPEC167CG

Total 188, Current Page 1 of 19

This table collects all English aliases, systematic names and CAS‑related synonyms of the compound.

2,3,5,6-tetrachlorpyridine

Tetrapyridine

2,3,5,6-tetrachloro-pyridin

EINECS 219-283-9

MFCD00092428

2,3,5,6-Tetrachlor-pyridin

2,3,5,6-Tetrachloropyridine

Pyridine,2,3,5,6-tetrachloro

2,3,5,7-tetrachloropyridine

2,3,4,5-TETRA-O-ACETYL-1,6-DIBROMO-1,6-DIDEOXY-D-MANNITOL,WHITE SOLID

T6NJ BG CG EG FG

2,3,5,6-tetra-chloropyridine

This section contains frequently‑asked‑questions about this compound, including basic parameters, properties, storage conditions and corresponding answers.

Q: What is the SMILES notation of 2,3,5,6-Tetrachloropyridine?

A: SMILES notation of 2,3,5,6-Tetrachloropyridine is Clc1cc(Cl)c(Cl)nc1Cl.

Q: What is the molecular formula of 2,3,5,6-Tetrachloropyridine?

A: Molecular formula of 2,3,5,6-Tetrachloropyridine is C5HCl4N.

Q: What is the InChIKey of 2,3,5,6-Tetrachloropyridine?

A: InChIKey of 2,3,5,6-Tetrachloropyridine is FATBKZJZAHWCSL-UHFFFAOYSA-N.

Q: What English synonyms does 2,3,5,6-Tetrachloropyridine have?

A: English synonyms of 2,3,5,6-Tetrachloropyridine: 2,3,5,6-tetrachlorpyridine, Tetrapyridine, 2,3,5,6-tetrachloro-pyridin, EINECS 219-283-9, MFCD00092428, 2,3,5,6-Tetrachlor-pyridin, 2,3,5,6-Tetrachloropyridine, Pyridine,2,3,5,6-tetrachloro, 2,3,5,7-tetrachloropyridine, 2,3,4,5-TETRA-O-ACETYL-1,6-DIBROMO-1,6-DIDEOXY-D-MANNITOL,WHITE SOLID, T6NJ BG CG EG FG, 2,3,5,6-tetra-chloropyridine.

Q: What is the polar surface area (PSA) of 2,3,5,6-Tetrachloropyridine?

A: Polar surface area (PSA) of 2,3,5,6-Tetrachloropyridine is 12.89000.

Q: What is the molecular weight of 2,3,5,6-Tetrachloropyridine?

A: Molecular weight of 2,3,5,6-Tetrachloropyridine is 216.880.

Q: What are the downstream products of 2,3,5,6-Tetrachloropyridine?

A: Related downstream products(CAS) of 2,3,5,6-Tetrachloropyridine: 23995-94-0;2921-88-2;6515-38-4;16063-70-0;2457-47-8;2176-62-7;72863-84-4;75348-52-6;51066-53-6;642982-66-9.

Q: What is the LogP of 2,3,5,6-Tetrachloropyridine?

A: LogP of 2,3,5,6-Tetrachloropyridine is 3.38.

Q: What are the upstream materials of 2,3,5,6-Tetrachloropyridine?

A: Related upstream materials(CAS) of 2,3,5,6-Tetrachloropyridine: 2176-62-7;41797-97-1;74555-97-8;30332-35-5;107-13-1;76-02-8;23995-94-0;31279-12-6;16063-70-0.

Q: What is the safety information for 2,3,5,6-Tetrachloropyridine?

A: Safety information for 2,3,5,6-Tetrachloropyridine: S26-S36/37/39-S60-S61.

This table lists manufacturers and suppliers of this compound, including vendor names and product supply reference information.

Shanghai Nianxing Industrial Co., Ltd

Dayang Chem (Hangzhou) Co., Ltd.

Henan Tianfu Chemical Co., Ltd.

Zhongshan Xingrui Chemical Co. , Ltd.

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Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 2,3,5,6-Tetrachloropyridine
Price: Check
Purity: 98.0%
Delivery: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 2,3,5,6-Tetrachloropyridine
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Delivery: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

Henan Tianfu Chemical Co., Ltd.
China
Product Name: 2,3,5,6-Tetrachloropyridine
Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
Purity: 99.0%
Delivery: Inquiry
Contact: Anson
Email: info@tianfuchem.com

Zhongshan Xingrui Chemical Co. , Ltd.
China
Product Name: 2,3,5,6-Tetrachloropyridine
Price: ￥Inquiry/25kg
Purity: 99.0%
Delivery: Inquiry
Contact: Wang Jie
Email: 3096638339@qq.com

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2,3,5,6-Tetrachloropyridine

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