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Product Name: Palmitic acid
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Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 4-Pyrimidinecarboxylic acid, 2,6-diamino-5-methyl-
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Purity: 98.0%
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20865-34-3

20865-34-3 structure

20865-34-3 structure

Name: 4-Pyrimidinecarboxylic acid, 2,6-diamino-5-methyl-
Chemical Name: 2,6-diamino-5-methylpyrimidine-4-carboxylic acid
CAS Number: 20865-34-3
Molecular Formula: C₆H₈N₄O₂
Molecular Weight: 168.15300
Create Date: 2016-11-06 15:37:19
Modify Date: 2025-09-21 23:39:25

Name	2,6-diamino-5-methylpyrimidine-4-carboxylic acid
Synonyms	5-Methyl-2,6-diamino-4-carboxy-pyrimidin 2,6-Diamino-5-methyl-4-pyrimidinecarboxylic acid 2,6-Diamino-5-methyl-4-carboxy pyrimidine 4-Pyrimidinecarboxylic acid,2,6-diamino-5-methyl 2,6-diamino-5-methyl-pyrimidine-4-carboxylic acid

Density	1.539g/cm3
Boiling Point	552.3ºC at 760 mmHg
Molecular Formula	C₆H₈N₄O₂
Molecular Weight	168.15300
Flash Point	287.8ºC
Exact Mass	168.06500
PSA	115.12000
LogP	0.81000
Vapour Pressure	4.96E-13mmHg at 25°C
Index of Refraction	1.709

CHEMICAL IDENTIFICATION

RTECS NUMBER :: UV7728000

CHEMICAL NAME :: 4-Pyrimidinecarboxylic acid, 2,6-diamino-5-methyl-

CAS REGISTRY NUMBER :: 20865-34-3

BEILSTEIN REFERENCE NO. :: 0515665

LAST UPDATED :: 199612

DATA ITEMS CITED :: 1

MOLECULAR FORMULA :: C6-H8-N4-O2

MOLECULAR WEIGHT :: 168.18

WISWESSER LINE NOTATION :: T6N CNJ BZ DVQ E1 FZ

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 :: 320 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#04718

HS Code	2933599090

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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