Naloxone
- CAS No.
- 465-65-6
- Chemical Name:
- Naloxone
- Synonyms
- Naloxone impurity;C07252;NALOXONE;NSC 70413;l-naloxone;Naloxone API;-bcd)furanone;Naloxone Base;,5-bcd)furanone;Naloxone (125 mg)
- CBNumber:
- CB5728727
- Molecular Formula:
- C19H21NO4
- Molecular Weight:
- 327.37
- MOL File:
- 465-65-6.mol
- Modify Date:
- 2024/3/19 15:37:50
| Melting point | 184° (Lewenstein), 177-178° (Sankyo Co.) |
|---|---|
| alpha | D20 -194.5° (c = 0.93 in CHCl3) |
| Boiling point | 465.27°C (rough estimate) |
| Density | 1.2223 (rough estimate) |
| refractive index | 1.5000 (estimate) |
| Flash point | 9℃ |
| storage temp. | 2-8°C |
| solubility | Chloroform (Slightly, Heated, Sonicated), DMSO (Slightly), Methanol (Slightly), |
| form | Solid |
| pka | pKa 7.94/7.82(H2O,t =20/37,I<0.01) (Uncertain) |
| color | White to Off-White |
| InChIKey | UZHSEJADLWPNLE-GRGSLBFTSA-N |
| EPA Substance Registry System | Morphinan-6-one, 4,5-epoxy-3,14-dihydroxy-17-(2-propenyl)-, (5.alpha.)- (465-65-6) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|---|---|
| Signal word | Warning |
| Hazard statements | H302 |
| Precautionary statements | P264-P270-P301+P312-P501 |
| Hazard Codes | F,T |
| Risk Statements | 11-23/24/25-39/23/24/25 |
| Safety Statements | 7-16-36/37-45 |
| RIDADR | UN1230 - class 3 - PG 2 - Methanol, solution |
| WGK Germany | 3 |
| HS Code | 2939190000 |
| Toxicity | An opiate antagonist devoid of agonist activity except for mild, specific effects at very high doses. Naloxone displays a high affinity for the μ-opioid receptor, a lesser affinity for the kopioid receptor and has some affinity for δ-opioid receptor subtypes. Naloxone produces a rapid and profound reversal of the effects of opioid administration (e.g., 1 mg, i.v., blocks the effects of 25 mg of heroin). Naloxone also antagonizes the analgesia induced by placebo, acupuncture, and stress, and in animals the hypotension due to hypovolemia or spinal cord injury. Naloxone has a short half-life (about 1 h in plasma) and is not administered orally because of rapid, “first-pass” metabolism. |
Naloxone Chemical Properties,Uses,Production
Description
It is worth mentioning that N-allylic substitution in a number of morphine derivatives, as a rule, leads to antagonistic properties. Naloxone is a few times stronger than nalorphine as an antagonist. It blocks opiate receptors. It eliminates central and peripheral action of opioids, including respiratory depression. Naloxone is used upon overdose of narcotic analgesics.
Uses
Naloxone is a specific opioid antagonist. Narcotic antagonist.
Definition
ChEBI: A synthetic morphinane alkaloid that is morphinone in which the enone double bond has been reduced to a single bond, the hydrogen at position 14 has been replaced by a hydroxy group, and the methyl group attached to the nitrogen has been replaced by an all l group. A specific opioid antagonist, it is used (commonly as its hydrochloride salt) to reverse the effects of opioids, both following their use of opioids during surgery and in cases of known or suspected opioid overdose.
Biological Functions
Because of its fast onset (minutes), naloxone (Narcan)
administered IV is used most frequently for the reversal
of opioid overdose. However, it fails to block some
side effects of the opioids that are mediated by the δ-
receptor, such as hallucinations. The rapid offset of
naloxone makes it necessary to administer the drug repeatedly
until the opioid agonist has cleared the system
to prevent relapse into overdose. The half-life of naloxone
in plasma is 1 hour. It is rapidly metabolized via glucuronidation in the liver and cleared by the kidney.
Naloxone given orally has a large first-pass effect, which
reduces its potency significantly. Often an overshoot
will follow the administration of naloxone for overdose.
The heart rate and blood pressure of the patient may
rise significantly. The overshoot is thought to be due to
precipitation of acute withdrawal signs by naloxone.
Given alone to nonaddicts, naloxone produces no pharmacological
effects.
Naloxone is approved for use in neonates to reverse
respiratory depression induced by maternal opioid use.
In addition, naloxone has been used to improve circulation
in patients in shock, an effect related to blockade of
endogenous opioids. Other experimental and less well
documented uses for naloxone include reversal of coma
in alcohol overdose, appetite suppression, and alleviation
of dementia from schizophrenia. Side effects of
naloxone are minor.
General Description
Naloxone (Narcan) is a pure antagonist at allopioid receptor subtypes. Structurally, it resembles oxymorphoneexcept that the methyl group on the nitrogen isreplaced by an allyl group. This minor structural change retains high binding affinity to the receptor, but no intrinsicactivity. It is used to reverse the respiratory depressant effectsof opioid overdoses.
Naloxone is administered intravenously with an onset ofaction within 2 minutes. Because it is competing with theopioid for the receptor sites, the dose and frequency of administrationwill depend on the amount and type of narcoticbeing antagonized. Overdoses of long-acting opioids(methadone) may require multiple IV doses of naloxone orcontinuous infusions. Neonates born to opioid-exposedmothers may be given IV naloxone at birth to reverse the effectsof opiates.
Very few metabolism studies on naloxone have beenconducted, although the major metabolite found in the urineis naloxone-3-glucuronide.
Naloxone Preparation Products And Raw materials
Raw materials
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| CLEARSYNTH LABS LTD. | +91-22-45045900 | Hyderabad, India | 6351 | 58 | Inquiry |
| Pharmaffiliates Analytics and Synthetics P. Ltd | +91-172-5066494 | Haryana, India | 6773 | 58 | Inquiry |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | China | 21675 | 55 | Inquiry |
| CONIER CHEM AND PHARMA LIMITED | +8618523575427 | China | 49391 | 58 | Inquiry |
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| LEAP CHEM CO., LTD. | +86-852-30606658 | China | 24738 | 58 | Inquiry |
| Shanghai Acmec Biochemical Technology Co., Ltd. | +undefined18621343501 | China | 33350 | 58 | Inquiry |
| Aladdin Scientific | +1-+1(833)-552-7181 | United States | 57511 | 58 | Inquiry |
| Shanghai Aladdin Biochemical Technology Co.,Ltd. | +86-18521732826 | China | 48467 | 58 | Inquiry |
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