Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Palmitic acid
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Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 4-Amino-6-hydroxy-2-mercaptopyrimidine monohydrate
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Purity: 98.0%
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65802-56-4

65802-56-4 structure

65802-56-4 structure

Name: 6-Amino-2-thioxo-2,3-dihydropyrimidin-4(1H)-one hydrate
Chemical Name: 4-Amino-6-hydroxy-2-mercaptopyrimidine monohydrate
CAS Number: 65802-56-4
Molecular Formula: C₄H₇N₃O₂S
Molecular Weight: 161.182
Catalog: Pharmaceutical intermediate Heterocyclic compound Pyrimidine compound Mercaptopyrimidine
Create Date: 2019-01-07 12:38:07
Modify Date: 2026-07-14 19:02:52

Name	4-Amino-6-hydroxy-2-mercaptopyrimidine monohydrate
Synonyms	6-Amino-2,3-dihydro-2-thioxopyrimidin-4(1H)-one monohydrate, 4-Amino-6-hydroxypyrimidine-2-thiol monohydrate 6-Amino-2-mercapto-4-pyrimidinol monohydrate, 6-Amino-2-thiouracil monohydrate 6-amino-2-mercaptopyrimidin-4-ol hydrate 4-AMINO-6-HYDROXYPYRIMIDINE-2-THIOLHYDRATE 6-Amino-2-thioxo-2,3-dihydro-1H-pyrimidin-4-one hydrate 6-AMINO-2-THIOURACIL HYDRATE 2-MERCAPTO-4-AMINO-6-HYDROXYPYRIMIDINE MONOHYDRATE 2-Pyrimidinethiol, 4-amino-6-hydroxy, monohydrate 4(1H)-Pyrimidinone, 6-amino-2,3-dihydro-2-thioxo-, hydrate (1:1) 4-AMINO-6-HYDROXY-2-MERCAPTOPYRIMIDINE MONOHYDRATE 4-Amino-6-hydroxy-2-mercaptopyrimidine Hydrate> 6-Amino-2,3-dihydro-2-thioxopyrimidin-4(1H)-one monohydrate MFCD00150556 6-Amino-2-sulfanylidene-1H-pyrimidin-4-one hydrate 6-Amino-2-thiouracil monohydrate, 4-Amino-6-hydroxypyrimidine-2-thiol monohydrate 4-Amino-6-hydroxy-2-mercaptopyrimidine monohydrate ISO 9001：2015 REACH 6-Amino-2-thioxo-2,3-dihydro-4(1H)-pyrimidinone hydrate (1:1) 4(1H)-Pyrimidinone,6-amino-2,3-dihydro-2-thioxo-,monohydrate(9CI) 4-Amino-2-thioxo-6-pyrimidinone Monohydrate 4-AMINO-6-HYDROXY-2-MERCAPTOPYRIMIDINE 1-HYDRATE 4-Amino-6-hydroxy-2-mercaptoprimidine 6-amino-2-sulfanylidene-1H-pyrimidin-4-one,hydrate 6-Amino-2-thioxo-2,3-dihydropyrimidin-4(1H)-one hydrate (1:1) 4-amino-6-hydroxy-2-pyrimidinethiomonohydrate 6-Amino-2-thioxo-2,3-dihydropyriMidin-4(1H)-one hydrate 4-AMINO-6-HYDROXY-2-THIOPYRIMIDINE MONOHYDRATE 4-AMINO-6-HYDROXY-2-MERCAPTOPYRIMIDINE HYDRATE 6-Amino-2-sulfanylpyrimidin-4-ol hydrate (1:1) 6-AMINO-6-HYDROXYPYRIMIDINE-2-THIOLHYDRATE 6-AMINO-2-MERCAPTO-4-PYRIMIDINOL MONOHYDRATE EINECS 251-501-8 2-Thio-6-aminouracil hydrate 6-AMINO-2-THIOURACIL MONOHYDRATE

Boiling Point	557ºC at 760 mmHg
Melting Point	>300 °C(lit.)
Molecular Formula	C₄H₇N₃O₂S
Molecular Weight	161.182
Flash Point	290.7ºC
Exact Mass	161.025894
PSA	115.99000
LogP	0.53160
Storage condition	Refrigerator

CHEMICAL IDENTIFICATION

RTECS NUMBER :: UW0495000

CHEMICAL NAME :: 2-Pyrimidinethiol, 4-amino-6-hydroxy-, monohydrate

CAS REGISTRY NUMBER :: 65802-56-4

LAST UPDATED :: 197901

DATA ITEMS CITED :: 1

MOLECULAR FORMULA :: C4-H5-N3-O-S.H2-O

MOLECULAR WEIGHT :: 161.20

WISWESSER LINE NOTATION :: T6N CNJ BSH DZ FQ &QH

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

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

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 178 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: CSLNX* U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. (Aberdeen Proving Ground, MD 21010) Volume(issue)/page/year: NX#00692

Symbol	GHS07
Signal Word	Warning
Hazard Statements	H302-H319
Precautionary Statements	P305 + P351 + P338
Personal Protective Equipment	dust mask type N95 (US);Eyeshields;Gloves
Hazard Codes	Xn: Harmful;
Risk Phrases	R22
Safety Phrases	S26-S24/25
RIDADR	NONH for all modes of transport
WGK Germany	3
RTECS	UW0495000
HS Code	2933599090

Precursor 0
DownStream 1
72195-13-2

HS Code	2933599090
Summary	2933599090. other compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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