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1,4,5,6-Tetrahydropyrimidine

1,4,5,6-Tetrahydropyrimidine structure

CAS No.: 1606-49-1

Chemical Name:: 1,4,5,6-Tetrahydropyrimidine

Synonyms: NSC 72087;1,4,5,6-Tetrahydropyrimidine;Pyrimidine, 1,4,5,6-tetrahydro-;1,4,5,6-Tetrahydropyrimidine 97%

CBNumber:: CB2150846

Molecular Formula:: C4H8N2

Molecular Weight:: 84.12

MDL Number:: MFCD00012098

MOL File:: 1606-49-1.mol

MSDS File:: SDS

TDS File:: TDS

Last updated:2026-09-12 18:50:16

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1,4,5,6-Tetrahydropyrimidine Properties

Melting point	88-89 °C
Boiling point	88-89 °C1 mm Hg(lit.)
Density	1.024 g/mL at 25 °C(lit.)
refractive index	n20/D 1.5194(lit.)
Flash point	>230 °F
pka	12.21±0.20(Predicted)
InChI	1S/C4H8N2/c1-2-5-4-6-3-1/h4H,1-3H2,(H,5,6)
InChIKey	VBXZSFNZVNDOPB-UHFFFAOYSA-N
SMILES	C1CNC=NC1
CAS DataBase Reference	1606-49-1
UNSPSC Code	12352100
NACRES	NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)	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	Eyeshields, Gloves, type ABEK (EN14387) respirator filter
Hazard Codes	Xi
Risk Statements	36/37/38
Safety Statements	26-37/39
WGK Germany	3
Storage Class	10 - Combustible liquids
Hazard Classifications	Eye Irrit. 2 Skin Irrit. 2 STOT SE 3

1,4,5,6-Tetrahydropyrimidine price More Price(22)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	293334	1,4,5,6-Tetrahydropyrimidine 97%	1606-49-1	5g	$190	2026-04-30	Buy
Sigma-Aldrich	293334	1,4,5,6-Tetrahydropyrimidine 97%	1606-49-1	25g	$627	2026-04-30	Buy
Usbiological	021592	1,4,5,6-Tetrahydropyrimidine	1606-49-1	5g	$425	2026-06-03	Buy
Matrix Scientific	309120	1,4,5,6-Tetrahydropyrimidine	1606-49-1	1.00g	$74	2026-05-19	Buy
Matrix Scientific	309120	1,4,5,6-Tetrahydropyrimidine	1606-49-1	5.00g	$195	2026-05-19	Buy

Product number	Packaging	Price	Buy
293334	5g	$190	Buy
293334	25g	$627	Buy
021592	5g	$425	Buy
309120	1.00g	$74	Buy
309120	5.00g	$195	Buy

1,4,5,6-Tetrahydropyrimidine Chemical Properties, Uses, Production

Uses

Derivatives of 1,4,5,6-Tetrahydropyrimidine can act as neuromuscular blocking, cardiovascular and antidepressant agents.

General Description

1,4,5,6-Tetrahydropyrimidine (THP) is a cyclic amidine and has been known to be carbon dioxide fixation agent. It reacts with carbon dioxide to yield a zwitterionic adduct (THP-CO₂).

1,4,5,6-Tetrahydropyrimidine Preparation Products And Raw materials

Raw materials

Preparation Products

1,4,5,6-Tetrahydropyrimidine Suppliers

Global Suppliers ( 60)

Supplier	Tel	Email	Country	ProdList	Advantage
J & K SCIENTIFIC LTD.	18210857532 18210857532	jkinfo@jkchemical.com	China	96815	76
Shanghai Hanhong Scientific Co.,Ltd.	021-54306202 13764082696	info@hanhongsci.com	China	42917	64
Chemsky (shanghai) International Co.,Ltd	021-50135380	shchemsky@sina.com	China	15350	60
Shanghai Aladdin Bio-Chem Technology Co.,LTD	400-6206333 13167063860	anhua.mao@aladdin-e.com	China	29977	65
Bide Pharmatech Ltd.	400-164-7117 18317119277	product02@bidepharm.com	China	40000	60
Shanghai Xingui Biotechnology Co., Ltd.	15121041756	xingui2022@126.com	China	9954	58
Sigma-Aldrich	021-61415566 800-8193336	orderCN@merckgroup.com	China	51389	80
Nanjing ERan Biological Pharmaceutical Co., Ltd.	13770809694	googlexu_0114@sina.com	China	992	58
Shanghai YuanYe Biotechnology Co., Ltd.	15026964105	2881489226@qq.com	China	89667	60
Chengdu Huachun Technology Co., Ltd	400-1166-196 15982826727	cdhxsj@163.com	China	14571	60

Supplier	Advantage
J & K SCIENTIFIC LTD.	76
Shanghai Hanhong Scientific Co.,Ltd.	64
Chemsky (shanghai) International Co.,Ltd	60
Shanghai Aladdin Bio-Chem Technology Co.,LTD	65
Bide Pharmatech Ltd.	60
Shanghai Xingui Biotechnology Co., Ltd.	58
Sigma-Aldrich	80
Nanjing ERan Biological Pharmaceutical Co., Ltd.	58
Shanghai YuanYe Biotechnology Co., Ltd.	60
Chengdu Huachun Technology Co., Ltd	60

1,4,5,6-Tetrahydropyrimidine Spectrum

1,4,5,6-TETRAHYDROPYRIMIDINE(1606-49-1)¹HNMR 1,4,5,6-TETRAHYDROPYRIMIDINE(1606-49-1)FT-IR 1,4,5,6-TETRAHYDROPYRIMIDINE(1606-49-1)IR

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1,4,5,6-Tetrahydropyrimidine 97% NSC 72087 Pyrimidine, 1,4,5,6-tetrahydro- 1,4,5,6-Tetrahydropyrimidine 1606-49-1 Heterocyclic Building Blocks Pyrimidines Building Blocks Heterocyclic Compounds Bases & Related Reagents Heterocycles Nucleotides Building Blocks Heterocyclic Building Blocks Pyrimidines