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Molekula

Molekula

Naltrexone hydrochloride USP Grade

SKU 90034747 CAS 16676-29-2 C20H23NO4 · HCl MW 377.86 Made to order Bulk quantities on request

Supplying 4,500+ customers in over 80 countries

ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need

Naltrexone hydrochloride USP Grade is a synthetic opioid antagonist primarily used in medicine to block the effects of opioids and alcohol, aiding in addiction treatment and recovery. It is also employed in research settings for studying opioid receptor mechanisms. This pharmaceutical-grade chemical has a CAS number of 16676-29-2, with a molecular formula of C20H23NO4 · HCl and a molecular weight of 377.86. It must be stored between 2 to 8°C and carries a signal word of Warning for safety handling. Molekula supplies Naltrexone hydrochloride USP Grade from research to bulk quantities with full documentation and ISO 9001:2015 traceability.

Expect a response within hours Speak to a chemist: +44 (0) 3302 000333

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Pricing & pack sizes

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Specifications

Property Value
Appearance White or almost white powder
Water 5.0% - 11.0% w/w
Heavy metals ≤ 0.001%
Identification IR absorption spectrum of the sample in potassium bromide dispersion should be concordant with similarly recorded spectrum of 17-(Cyclopropylmethyl),-4,5-Epoxy-3, 14-Dihdroymorphinan-6-One hydrochlorided diydrate working standard.
Acetone ≤ 1000 ppm
Colour Absorbance of 1 cm layer of 6.5% w/v solution in water at 420 nm should less than 0,1 An
Chloride (Cl-) 9.20% - 9.58% w/w (on anhydrous and solvent free basis)
Solubility Freely soluble in water, Practically insoluble in
Dichloromethane ≤ 250 ppm
Assay (HPLC) 98.0% - 102% w/w (on anhydrous and solvent free basis)
Methanol ≤ 2000 ppm
Residue on Ignition ≤ 0.1% w/w
Specific optical rotation -187.0o to -197.0 o (on anhydrous and solvent free basis)
Ethyl acetate ≤ 1000 ppm
N,N-Dimethylformamide ≤ 200 ppm
Toluene ≤ 200 ppm
Benzene ≤ 2 ppm
Acetic acid ≤ 1000 ppm
Sulphates (SO4)(2-) ≤ 500 ppm
Chlorobenzene ≤ 360 ppm
Cyclohexane ≤ 1000 ppm
Carbon tetrachloride ≤ 4 ppm
Total solvents Sum of all solvents(from test no.: 10.1+ test no.
Completeness and colour of solution Should obtain clear solution
Content of Didehydronaltrexone ≤ 10 ppm
Impurity Related compounds(by HPLC) a) Noroxymorphone ≤ 0.50%
b) 10-Hydroxynaltrexone ≤ 0.50%
c) Naltrexone related compound A ≤ 0.50%
d) 2,2’ Bisnaltrexone ≤ 0.50%
e) 10-ketonaltrexone ≤ 0.50%
f) Impurity H ≤ 0.50%
g) Impurity J ≤ 0.50%
h) Impurity E ≤ 0.20%
i) Highest unknown impurity ≤ .10%
j) Total impurities ≤ 1.50%
Particle size (by Malvern) 99% Particles should below 250μm, 90% Particles should below 100μm, 50% Particles should below 50 μm

Storage & handling

Property Value
Storage Temperature 2 to 8 °C
Acidity Neutral

Identification

Property Value
SKU 90034747
CAS Number 16676-29-2
IUPAC Name (4R,4aS,7aR,12bS)-3-(cyclopropylmethyl)-4a,9-dihydroxy-2,4,5,6,7a,13-hexahydro-1H-4,12-methanobenzofuro[3,2-e]isoquinolin-7-one;hydrochloride
EC Number 240-723-0
Molecular Formula C20H23NO4 · HCl
Molecular Weight 377.86
Exact Mass 377.1394
SMILES C1CC1CN2CC[C@]34[C@@H]5C(=O)CC[C@]3([C@H]2CC6=C4C(=C(C=C6)O)O5)O.Cl
InChIKey RHBRMCOKKKZVRY-ITLPAZOVSA-N
InChI InChI=1S/C20H23NO4.ClH/c22-13-4-3-12-9-15-20(24)6-5-14(23)18-19(20,16(12)17(13)25-18)7-8-21(15)10-11-1-2-11;/h3-4,11,15,18,22,24H,1-2,5-10H2;1H/t15-,18+,19+,20-;/m1./s1
PubChem CID 5485201
REACH Code Y110
HTS Code 2939192000
Tariff Code 2939190000

Safety & GHS

Warning
  • GHS pictogram — Health Hazard Health Hazard GHS07
  • GHS pictogram — Serious Health Hazard Serious Health Hazard GHS08

Hazard statements

  • H302 Harmful if swallowed
  • H341 Suspected of causing genetic defects

Precautionary statements

  • P260 Do not breathe dust/fume/gas/mist/vapours/spray
  • P280 Wear protective gloves/protective clothing/eye protection/face protection
  • P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
  • P302+352 IF ON SKIN: Wash with soap and water
  • P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing

Documents

Certificate of Analysis (CoA) by batch

Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.

Synonyms

No alternate names recorded for this product.

Frequently asked questions

What is Naltrexone hydrochloride USP Grade commonly used for?

Naltrexone hydrochloride USP Grade is primarily used in the treatment of alcohol and opioid dependence, as well as for managing cravings in these conditions.

What is the chemical formula and molecular weight of Naltrexone hydrochloride?

The chemical formula is **C20H23NO4 · HCl**, and the molecular weight is **377.86 g/mol**.

How should Naltrexone hydrochloride USP Grade be stored?

Store at **2 to 8°C** to maintain stability and potency.

Does Molekula supply Naltrexone hydrochloride in bulk quantities?

Yes, Molekula can supply Naltrexone hydrochloride USP Grade in bulk, subject to regulatory compliance and order requirements.

What documentation comes with an order of Naltrexone hydrochloride USP Grade?

Each order includes a **Certificate of Analysis (CoA)**, **Material Safety Data Sheet (MSDS)**, and a **Certificate of Conformance (CoC)** to USP standards.

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