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38957-41-4

38957-41-4 structure
38957-41-4 structure
  • Name: Emorfazone
  • Chemical Name: 4-ethoxy-2-methyl-5-morpholin-4-ylpyridazin-3-one
  • CAS Number: 38957-41-4
  • Molecular Formula: C11H17N3O3
  • Molecular Weight: 239.27100
  • Catalog: API Antipyretic analgesics Analgesic
  • Create Date: 2018-02-25 08:00:00
  • Modify Date: 2024-01-22 14:56:26
Name 4-ethoxy-2-methyl-5-morpholin-4-ylpyridazin-3-one
Synonyms emorfazone
EINECS 254-220-9
Emorfazone [INN-French]
Nandron
emorfazone(jan)
4-ethoxy-2-methyl-5-morpholin-4-yl-2H-pyridazin-3-one
Emorfazona [INN-Spanish]
Emorfazonum [INN-Latin]
Density 1.27g/cm3
Boiling Point 366.5ºC at 760 mmHg
Melting Point 89-91°
Molecular Formula C11H17N3O3
Molecular Weight 239.27100
Flash Point 175.4ºC
Exact Mass 239.12700
PSA 56.59000
LogP 0.08060
Index of Refraction 1.579

CHEMICAL IDENTIFICATION

RTECS NUMBER :
UR6493200
CHEMICAL NAME :
3(2H)-Pyridazinone, 4-ethoxy-2-methyl-5-morpholino-
CAS REGISTRY NUMBER :
38957-41-4
LAST UPDATED :
199612
DATA ITEMS CITED :
22
MOLECULAR FORMULA :
C11-H17-N3-O3
MOLECULAR WEIGHT :
239.31
WISWESSER LINE NOTATION :
T6NNVJ B1 DO2 E- AT6N DOTJ

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
1900 mg/kg
TOXIC EFFECTS :
Behavioral - changes in motor activity (specific assay) Behavioral - ataxia Lungs, Thorax, or Respiration - respiratory depression
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
600 mg/kg
TOXIC EFFECTS :
Behavioral - changes in motor activity (specific assay) Behavioral - ataxia Lungs, Thorax, or Respiration - respiratory depression
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Subcutaneous
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
720 mg/kg
TOXIC EFFECTS :
Behavioral - changes in motor activity (specific assay) Behavioral - ataxia Lungs, Thorax, or Respiration - respiratory depression
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
340 mg/kg
TOXIC EFFECTS :
Behavioral - changes in motor activity (specific assay) Behavioral - ataxia Lungs, Thorax, or Respiration - respiratory depression
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
960 mg/kg
TOXIC EFFECTS :
Behavioral - changes in motor activity (specific assay) Behavioral - ataxia Lungs, Thorax, or Respiration - respiratory depression
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
620 mg/kg
TOXIC EFFECTS :
Behavioral - changes in motor activity (specific assay) Behavioral - ataxia Lungs, Thorax, or Respiration - respiratory depression
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Subcutaneous
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
750 mg/kg
TOXIC EFFECTS :
Behavioral - changes in motor activity (specific assay) Behavioral - ataxia Lungs, Thorax, or Respiration - respiratory depression
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
305 mg/kg
TOXIC EFFECTS :
Behavioral - changes in motor activity (specific assay) Behavioral - ataxia Lungs, Thorax, or Respiration - respiratory depression
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Mammal - dog
DOSE/DURATION :
310 mg/kg
TOXIC EFFECTS :
Behavioral - changes in motor activity (specific assay) Behavioral - ataxia Lungs, Thorax, or Respiration - respiratory depression
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rabbit
DOSE/DURATION :
840 mg/kg
TOXIC EFFECTS :
Behavioral - changes in motor activity (specific assay) Behavioral - ataxia Lungs, Thorax, or Respiration - respiratory depression
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - rabbit
DOSE/DURATION :
230 mg/kg
TOXIC EFFECTS :
Behavioral - changes in motor activity (specific assay) Behavioral - ataxia Lungs, Thorax, or Respiration - respiratory depression
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
182 gm/kg/26W-I
TOXIC EFFECTS :
Liver - other changes Kidney, Ureter, Bladder - changes in bladder weight Blood - changes in serum composition (e.g. TP, bilirubin, cholesterol)
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
21 gm/kg/6W-I
TOXIC EFFECTS :
Liver - changes in liver weight Kidney, Ureter, Bladder - changes in bladder weight Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - transaminases
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Mammal - dog
DOSE/DURATION :
45360 mg/kg/27W-I
TOXIC EFFECTS :
Liver - other changes Liver - changes in liver weight Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - phosphatases
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
4200 mg/kg
SEX/DURATION :
female 9-15 day(s) after conception
TOXIC EFFECTS :
Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus) Reproductive - Effects on Newborn - sex ratio
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
700 mg/kg
SEX/DURATION :
female 9-15 day(s) after conception
TOXIC EFFECTS :
Reproductive - Effects on Newborn - growth statistics (e.g.%, reduced weight gain)
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
16200 mg/kg
SEX/DURATION :
female 17-22 day(s) after conception lactating female 21 day(s) post-birth
TOXIC EFFECTS :
Reproductive - Effects on Newborn - sex ratio
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
6750 mg/kg
SEX/DURATION :
female 17-22 day(s) after conception lactating female 21 day(s) post-birth
TOXIC EFFECTS :
Reproductive - Specific Developmental Abnormalities - musculoskeletal system
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
5600 mg/kg
SEX/DURATION :
female 7-13 day(s) after conception
TOXIC EFFECTS :
Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus)
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
2800 mg/kg
SEX/DURATION :
female 7-13 day(s) after conception
TOXIC EFFECTS :
Reproductive - Specific Developmental Abnormalities - musculoskeletal system
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
DOSE :
500 mg/kg
SEX/DURATION :
male 1 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Fertility - pre-implantation mortality (e.g. reduction in number of implants per female; total number of implants per corpora lutea)

MUTATION DATA

TEST SYSTEM :
Rodent - mouse
DOSE/DURATION :
500 mg/kg
REFERENCE :
IYKEDH Iyakuhin Kenkyu. Study of Medical Supplies. (Nippon Koteisho Kyokai, 12-15, 2-chome, Shibuya, Shibuya-ku, Tokyo 150, Japan) V.1- 1970- Volume(issue)/page/year: 11,559,1980
HS Code 2934999090
HS Code 2934999090
Summary 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Chemsrc provides CAS#:38957-41-4 MSDS, density, melting point, boiling point, structure, formula, molecular weight, synthetic route, etc.
title: CAS No. 38957-41-4 | Chemsrc address: https://www.chemsrc.com/en/baike/442019.html

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