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83-43-2

83-43-2 structure
83-43-2 structure
  • Name: Methylprednisolone
  • Chemical Name: 6α-methylprednisolone
  • CAS Number: 83-43-2
  • Molecular Formula: C22H30O5
  • Molecular Weight: 374.471
  • Catalog: API Hormone and endocrine-regulating drugs Adrenal corticosteroids
  • Create Date: 2018-02-08 08:00:00
  • Modify Date: 2024-01-02 08:15:39
  • Methylprednisolone is a synthetic corticosteroid with anti-inflammatory and immunomodulating properties.Target: Glucocorticoid ReceptorMethylprednisolone is typically used for its anti-inflammatory effects. Common uses include arthritis therapy and short-term treatment of bronchial inflammation or acute bronchitis due to various respiratory diseases. Methylprednisolone is used both in the treatment of acute periods and long-term management of autoimmune diseases, most notably systemic lupus erythematosus. It is also used for vestibular neuritis [1].After six months the patients who were treated with methylprednisolone within eight hours of their injury had significant improvement as compared with those given placebo in motor function (neurologic change scores of 16.0 and 11.2, respectively; P = 0.03) and sensation to pinprick (change scores of 11.4 and 6.6; P = 0.02) and touch (change scores, 8.9 and 4.3; P = 0.03). Benefit from methylprednisolone was seen in patients whose injuries were initially evaluated as neurologically complete, as well as in those believed to have incomplete lesions [2].

Name 6α-methylprednisolone
Synonyms (6S,8S,9S,10R,11S,13S,14S,17R)-11,17-dihydroxy-17-(2-hydroxyacetyl)-6,10,13-trimethyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-3-one
MFCD00010591
EINECS 201-476-4
Methylprednisolone
6alpha-methylprednisolone
Description Methylprednisolone is a synthetic corticosteroid with anti-inflammatory and immunomodulating properties.Target: Glucocorticoid ReceptorMethylprednisolone is typically used for its anti-inflammatory effects. Common uses include arthritis therapy and short-term treatment of bronchial inflammation or acute bronchitis due to various respiratory diseases. Methylprednisolone is used both in the treatment of acute periods and long-term management of autoimmune diseases, most notably systemic lupus erythematosus. It is also used for vestibular neuritis [1].After six months the patients who were treated with methylprednisolone within eight hours of their injury had significant improvement as compared with those given placebo in motor function (neurologic change scores of 16.0 and 11.2, respectively; P = 0.03) and sensation to pinprick (change scores of 11.4 and 6.6; P = 0.02) and touch (change scores, 8.9 and 4.3; P = 0.03). Benefit from methylprednisolone was seen in patients whose injuries were initially evaluated as neurologically complete, as well as in those believed to have incomplete lesions [2].
Related Catalog
References

[1]. Strupp, M., et al., Methylprednisolone, valacyclovir, or the combination for vestibular neuritis. N Engl J Med, 2004. 351(4): p. 354-61.

[2]. Bracken, M.B., et al., A randomized, controlled trial of methylprednisolone or naloxone in the treatment of acute spinal-cord injury. Results of the Second National Acute Spinal Cord Injury Study. N Engl J Med, 1990. 322(20): p. 1405-11.

Density 1.3±0.1 g/cm3
Boiling Point 571.8±50.0 °C at 760 mmHg
Melting Point 228-237°C (dec.)
Molecular Formula C22H30O5
Molecular Weight 374.471
Flash Point 313.7±26.6 °C
Exact Mass 374.209320
PSA 94.83000
LogP 1.99
Vapour Pressure 0.0±3.6 mmHg at 25°C
Index of Refraction 1.603
Storage condition 0-6°C
Water Solubility chloroform/methanol (9:1): 50 mg/mL, clear, faintly yellow
Name: 6-alpha-Methylprednisolone 99% Material Safety Data Sheet
Synonym: Medro
CAS: 83-43-2
Section 1 - Chemical Product MSDS Name:6-alpha-Methylprednisolone 99% Material Safety Data Sheet
Synonym:Medro

Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
CAS# Chemical Name content EINECS#
83-43-2 6-alpha-Methylprednisolone 99% 201-476-4
Hazard Symbols: XN
Risk Phrases: 40

Section 3 - HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
Limited evidence of a carcinogenic effect.
Potential Health Effects
Eye:
May cause eye irritation.
Skin:
Harmful if absorbed through the skin.
Ingestion:
Harmful if swallowed.
Inhalation:
Harmful if inhaled. May cause irritation of the respiratory tract with burning pain in the nose and throat, coughing, wheezing, shortness of breath and pulmonary edema.
Chronic:
Not available.

Section 4 - FIRST AID MEASURES
Eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
Skin:
Get medical aid. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Ingestion:
Get medical aid. Wash mouth out with water.
Inhalation:
Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician:

Section 5 - FIRE FIGHTING MEASURES
General Information:
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear.
Extinguishing Media:
Use foam, dry chemical, or carbon dioxide.

Section 6 - ACCIDENTAL RELEASE MEASURES
General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Vacuum or sweep up material and place into a suitable disposal container.

Section 7 - HANDLING and STORAGE
Handling:
Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.
Storage:
Store in a cool, dry place. Store in a tightly closed container.

Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
Engineering Controls:
Use adequate ventilation to keep airborne concentrations low.
Exposure Limits CAS# 83-43-2: Personal Protective Equipment Eyes: Not available.
Skin:
Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.

Section 9 - PHYSICAL AND CHEMICAL PROPERTIES

Physical State: Powder
Color: white
Odor: Not available.
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: 227-231 deg C
Autoignition Temperature: Not available.
Flash Point: Not available.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water: Insoluble.
Specific Gravity/Density:
Molecular Formula: C22H30O5
Molecular Weight: 374.207

Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Stable.
Conditions to Avoid:
Incompatible materials.
Incompatibilities with Other Materials:
Strong oxidizing agents, acids, acid chlorides, carbon dioxide, acid anhydrides.
Hazardous Decomposition Products:
Nitrogen oxides, carbon monoxide, carbon dioxide.
Hazardous Polymerization: Will not occur.

Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 83-43-2: TU4146000 LD50/LC50:
CAS# 83-43-2: Oral, rat: LD50 = >4 gm/kg.
Carcinogenicity:
6-alpha-Methylprednisolone - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.

Section 12 - ECOLOGICAL INFORMATION


Section 13 - DISPOSAL CONSIDERATIONS
Dispose of in a manner consistent with federal, state, and local regulations.

Section 14 - TRANSPORT INFORMATION

IATA
No information available.
IMO
No information available.
RID/ADR
No information available.

Section 15 - REGULATORY INFORMATION

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: XN
Risk Phrases:
R 40 Limited evidence of a carcinogenic effect.
Safety Phrases:
S 36/37 Wear suitable protective clothing and
gloves.
S 45 In case of accident or if you feel unwell, seek
medical advice immediately (show the label where
possible).
WGK (Water Danger/Protection)
CAS# 83-43-2: No information available.
Canada
CAS# 83-43-2 is listed on Canada's NDSL List.
CAS# 83-43-2 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 83-43-2 is listed on the TSCA inventory.


SECTION 16 - ADDITIONAL INFORMATION
N/A

CHEMICAL IDENTIFICATION

RTECS NUMBER :
TU4146000
CHEMICAL NAME :
Pregna-1,4-diene-3,20-dione, 6-alpha-methyl-11-beta-17,21-trihydroxy-
CAS REGISTRY NUMBER :
83-43-2
BEILSTEIN REFERENCE NO. :
2340300
LAST UPDATED :
199701
DATA ITEMS CITED :
9
MOLECULAR FORMULA :
C22-H30-O5
MOLECULAR WEIGHT :
374.52
WISWESSER LINE NOTATION :
L E5 B666 OV AHTTT&J A1 CQ E1 FV1Q FQ L1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Parenteral
SPECIES OBSERVED :
Human - woman
DOSE/DURATION :
2400 ug/kg
TOXIC EFFECTS :
Cardiac - change in rate Lungs, Thorax, or Respiration - respiratory depression Nutritional and Gross Metabolic - body temperature increase
REFERENCE :
BJANAD British Journal of Anesthesia. (Macmillan Press Ltd., Houndmills, Basingstoke, Hants. RG21 2XS, UK) V.1- 1923- Volume(issue)/page/year: 69,422,1992
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Human - woman
DOSE/DURATION :
60 mg/kg/3D-I
TOXIC EFFECTS :
Cardiac - pulse rate increase, without fall in BP Vascular - BP lowering not characterized in autonomic section Nutritional and Gross Metabolic - body temperature increase
REFERENCE :
AIMEAS Annals of Internal Medicine. (American College of Physicians, 4200 Pine St., Philadelphia, PA 19104) V.1- 1927- Volume(issue)/page/year: 99,282,1983
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Human - woman
DOSE/DURATION :
20 mg/kg/45M-C
TOXIC EFFECTS :
Cardiac - arrhythmias (including changes in conduction)
REFERENCE :
JRHUA9 Journal of Rheumatology. (920 Yonge St., Suite 608, Toronto, Ont., Canada) V.1- 1974- Volume(issue)/page/year: 13,477,1986
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
>4 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
NIIRDN Drugs in Japan (Ethical Drugs). (Yakugyo Jiho Co., Ltd., Tokyo, Japan) Volume(issue)/page/year: 6,832,1982
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
2292 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
NIIRDN Drugs in Japan (Ethical Drugs). (Yakugyo Jiho Co., Ltd., Tokyo, Japan) Volume(issue)/page/year: 6,832,1982 ** OTHER MULTIPLE DOSE TOXICITY DATA **
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Mammal - dog
DOSE/DURATION :
210 mg/kg/6W-I
TOXIC EFFECTS :
Kidney, Ureter, Bladder - other changes in urine composition Nutritional and Gross Metabolic - weight loss or decreased weight gain Nutritional and Gross Metabolic - changes in sodium
REFERENCE :
TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 1,305,1959 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 84067 No. of Facilities: 33 (estimated) No. of Industries: 2 No. of Occupations: 1 No. of Employees: 272 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 84067 No. of Facilities: 42 (estimated) No. of Industries: 1 No. of Occupations: 1 No. of Employees: 2047 (estimated) No. of Female Employees: 983 (estimated)
Personal Protective Equipment Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter
Hazard Codes Xi
Risk Phrases R36/37/38
Safety Phrases S22-S36
RIDADR NONH for all modes of transport
WGK Germany 2
RTECS TU4146000