Shanghai Nianxing Industrial Co., Ltd
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Product Name: Palmitic acid
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Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 2,4,6(1H,3H,5H)-Pyrimidinetrione,5-(1-cyclohexen-1-yl)-1,5-dimethyl-
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Purity: 98.0%
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56-29-1

56-29-1 structure

56-29-1 structure

Name: 2,4,6(1H,3H,5H)-Pyrimidinetrione,5-(1-cyclohexen-1-yl)-1,5-dimethyl
Chemical Name: hexobarbital
CAS Number: 56-29-1
Molecular Formula: C₁₂H₁₆N₂O₃
Molecular Weight: 236.26700
Catalog: Natural product Phenols
Create Date: 2018-06-30 16:43:25
Modify Date: 2026-07-08 09:13:52

Name	hexobarbital
Synonyms	5-(1-cyclohexenyl-1)-1-methyl-5-methylbbituricacid Bbidorm Hexobarbitone hexobbital methanol solution Evipan 5-(1-Cyclohexene-1-yl)-1,5-dimethylbbituricacid Evipal rac-Hexobarbital Methexenyl 1,5-dimethyl-5-(1-cyclohexenyl)bbituricacid Hexobbitone Enhexymal Cyclopan 6(1h,3h,5h)-pyrimidinetrione,5-(1-cyclohexen-1-yl)-1,5-dimethyl-4 Cyclonal 5-(Cyclohexen-1-yl)-1,5-dimethylbbituric acid n-methyl-5-cyclohexenyl-5-methylbbituricacid 5-(delta-1,2-cyclohexenyl)-5-methyl-N-methyl-bbitursaeure 5-(cyclohexen-1-yl)-1,5-dimethyl-1,3-diazinane-2,4,6-trione 5-cyclohexen-1-yl-1,5-dimethyl-1,3-diazinane-2,4,6-trione Citodon hexanastaboral Ncosan Hexobbital Solution, 100ppm Hexanastab oral 1,5-Dimethyl-5-(1-cyclohexenyl)bbituric acid Barbidorm Hexobbital (base and/or unspecified salts) component of Percobb Cyclohexemal 5-cyclohexenyl-N-methyl-5-methyl-barbituric acid Bbituric acid, 5-(1-cyclohexen-1-yl)-1,5-dimethyl Hexobbital solution Hexobarbital Somnalert Esobbitale hexenal(bbiturate) 5-[1-CYCLOHEXENYL]-1,5-DIMETHYLBBITURIC ACID 2,4,6(1H,3H,5H)-Pyrimidinetrione, 5-(1-cyclohexen-1-yl)-1,5-dimethyl 5-(1-cyclohexen-1-yl)-1,5-dimethylbbituricacid Noctivane 5-(1-Cyclohexenyl-1)-1-methyl-5-methylbbituric acid Dorico Sombucaps 5-(1-Cyclohexenyl)-1,5-dimethylbbituric acid, Evipal Toleran Hexabbital EVIPAL 5-(1-Cyclohexen-1-yl)-1,5-dimethylbbituric acid 5-(1-Cyclohexen-1-yl)-1,5-dimethyl-2,4,6(1H,3H,5H)-pyrimidinetrione N-Methyl-5-cyclohexenyl-5-methylbbituric acid 5-(cyclohex-1-enyl)-1,5-dimethylbbituric acid LABOTEST-BB LT00244803 5-(Cyclohexen-1-yl)-1,5-dimethylbbitursaeure Hexobbital CIII Sombulex 5-(1-cyclohexen-1-yl)-1,5-dimethyl-bbituricaci Hexenal hexobbital-deascheduleiiiitem Methylhexabbital Citopan Methylhexabital HEXOBBITAL Hexenal (bbiturate)

Density	1.225 g/cm3
Boiling Point	368.8ºC at 760 mmHg
Melting Point	145-147°
Molecular Formula	C₁₂H₁₆N₂O₃
Molecular Weight	236.26700
Flash Point	176.8ºC
Exact Mass	236.11600
PSA	66.48000
LogP	1.46800
Index of Refraction	1.5460 (estimate)
Storage condition	2-8°C

CHEMICAL IDENTIFICATION

RTECS NUMBER :: CQ2625000

CHEMICAL NAME :: Barbituric acid, 5-(1-cyclohexen-1-yl)-1,5-dimethyl-

CAS REGISTRY NUMBER :: 56-29-1

LAST UPDATED :: 199409

DATA ITEMS CITED :: 16

MOLECULAR FORMULA :: C12-H16-N2-O3

MOLECULAR WEIGHT :: 236.30

WISWESSER LINE NOTATION :: T6VMVNV FHJ D1 F1 F- AL6UTJ

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

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

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 330 mg/kg

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

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 400 mg/kg

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

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 468 mg/kg

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

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

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 270 mg/kg

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

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 250 mg/kg

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

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

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 133 mg/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity)

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Intrapleural

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 340 mg/kg

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

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

ROUTE OF EXPOSURE :: Parenteral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 160 mg/kg

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

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 1200 mg/kg

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

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 80 mg/kg

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

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Rectal

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 175 mg/kg

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

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Amphibian - frog

DOSE/DURATION :: 30 mg/kg

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

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

ROUTE OF EXPOSURE :: Parenteral

SPECIES OBSERVED :: Amphibian - frog

DOSE/DURATION :: 148 mg/kg

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

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 1654 mg/kg/7D-I

TOXIC EFFECTS :: Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - other hydrolases

MUTATION DATA

TYPE OF TEST :: Cytogenetic analysis

TEST SYSTEM :: Human Leukocyte

DOSE/DURATION :: 1500 mg/L

REFERENCE :: TGANAK Tsitologiya i Genetika. Cytology and Genetics. For English translation, see CYGEDX. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1967- Volume(issue)/page/year: 18(1),13,1984 *** REVIEWS *** TOXICOLOGY REVIEW PHREA7 Physiological Reviews. (American Physiological Soc., 9650 Rockville Pike, Bethesda, MD 20814) V.1- 1921- Volume(issue)/page/year: 19,472,1939

Symbol	GHS02, GHS06, GHS08
Signal Word	Danger
Hazard Statements	H225-H301 + H311 + H331-H370
Precautionary Statements	P210-P260-P280-P301 + P310-P311
Hazard Codes	Xn: Harmful;
Risk Phrases	R22
Safety Phrases	36/37/39-45-36/37-16-7
RIDADR	UN 3249
WGK Germany	3
RTECS	CQ2625000
Packaging Group	III
Hazard Class	6.1(b)

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