Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 5-methyl-2,6-dioxo-1,2,3,6-tetrahydropyrimidine-4-carboxylic acid
Price: Check
Purity: 97.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 4-Pyrimidinecarboxylicacid, 1,2,3,6-tetrahydro-5-methyl-2,6-dioxo-
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

3993-73-5

3993-73-5 structure

3993-73-5 structure

Name: 4-Pyrimidinecarboxylicacid, 1,2,3,6-tetrahydro-5-methyl-2,6-dioxo-
Chemical Name: 5-methyl-2,4-dioxo-1H-pyrimidine-6-carboxylic acid
CAS Number: 3993-73-5
Molecular Formula: C₆H₆N₂O₄
Molecular Weight: 170.12300
Create Date: 2018-03-13 08:00:00
Modify Date: 2025-09-14 14:00:07

Name	5-methyl-2,4-dioxo-1H-pyrimidine-6-carboxylic acid
Synonyms	2,6-Dihydroxy-5-methyl-4-carboxy pyrimidine 5-Methylorotic acid 5-methyl-2,6-dioxo-1,2,3,6-tetrahydro-pyrimidine-4-carboxylic acid 5-Methylorotsaeure 5-Methyl-2,6-dioxo-1,2,3,6-tetrahydro-pyrimidin-4-carbonsaeure EINECS 223-640-4 Orotic acid,5-methyl Methylorotic acid 6-Thyminecarboxylic acid 2,6-Dihydroxy-5-methyl-4-pyrimidinecarboxylic acid

Density	1.505g/cm3
Molecular Formula	C₆H₆N₂O₄
Molecular Weight	170.12300
Exact Mass	170.03300
PSA	103.02000
Index of Refraction	1.546

CHEMICAL IDENTIFICATION

RTECS NUMBER :: UV7730000

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

CAS REGISTRY NUMBER :: 3993-73-5

LAST UPDATED :: 199701

DATA ITEMS CITED :: 2

MOLECULAR FORMULA :: C6-H6-N2-O4

MOLECULAR WEIGHT :: 170.14

WISWESSER LINE NOTATION :: T6N CNJ BQ DVQ E1 FQ

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 :: 180 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#04722

Precursor 0
DownStream 2
75-25-2 74039-19-3

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