ChemicalBook >> CAS DataBase List >>Demoxepam
Demoxepam
- CAS No.
- 963-39-3
- Chemical Name:
- Demoxepam
- Synonyms
- Chlordiazepoxide Related CoMpound A;ro5-2092;NSC 4607;Ro 5-2092;NSC-46077;NSC-46007;Demoxepam;NSC 169898;ro5-2092lactam;Ro 5-2092 lactam
- CBNumber:
- CB4501398
- Molecular Formula:
- C15H11ClN2O2
- Molecular Weight:
- 286.71
- MDL Number:
- MFCD11840314
- MOL File:
- 963-39-3.mol
- MSDS File:
- SDS
Last updated:2026-05-28 04:54:39
| Melting point | 235-236 °C (decomp) |
|---|---|
| Density | 1.40±0.1 g/cm3(Predicted) |
| Flash point | 2℃ |
| storage temp. | -20°C |
| solubility | Chloroform (Slightly), Methanol (Slightly) |
| form | Solid |
| pka | pKa 4.5 (Uncertain) |
| color | White to Pale Yellow |
| Major Application | pharmaceutical (small molecule) |
| InChI | 1S/C15H11ClN2O2/c16-11-6-7-13-12(8-11)15(10-4-2-1-3-5-10)18(20)9-14(19)17-13/h1-8,20H,9H2 |
| InChIKey | PSADRZMLSXCSAS-UHFFFAOYSA-N |
| SMILES | ClC1=CC2=C(N(CC(=O)N=C2C=C1)O)c3ccccc3 |
| EWG's Food Scores | 1 |
| FDA UNII | 8X1XP5M0SB |
| NIST Chemistry Reference | Demoxepam(963-39-3) |
| UNSPSC Code | 41116107 |
| NACRES | NA.24 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) | ![]() GHS07 |
|---|---|
| Signal word | Warning |
| Hazard statements | H302 |
| Precautionary statements | P264-P270-P301+P312-P501 |
| Hazard Codes | F,Xn |
| Risk Statements | 11-20/21/22-36 |
| Safety Statements | 16-26-36/37 |
| RIDADR | UN 1648 3 / PGII |
| WGK Germany | 3 |
| HS Code | 2933996100 |
| Storage Class | 11 - Combustible Solids |
| Hazard Classifications | Acute Tox. 4 Oral |
| REACH Registrations | Active |
Demoxepam price More Price(23)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | D-079 | Demoxepam solution 1.0?mg/mL in acetonitrile, ampule of 1?mL, certified reference material, Cerilliant? | 963-39-3 | 1mL | $118 | 2026-04-30 | Buy |
| Sigma-Aldrich | 1110020 | Chlordiazepoxide Related Compound A United States Pharmacopeia (USP) Reference Standard | 963-39-3 | 25mg | $1290 | 2026-04-30 | Buy |
| Cayman Chemical | 21937 | Demoxepam ≥98% | 963-39-3 | 1mg | $39 | 2026-04-30 | Buy |
| Cayman Chemical | 21937 | Demoxepam ≥98% | 963-39-3 | 5mg | $126 | 2026-04-30 | Buy |
| Cayman Chemical | 21937 | Demoxepam ≥98% | 963-39-3 | 10mg | $231 | 2026-04-30 | Buy |
Demoxepam Chemical Properties,Uses,Production
Chemical Properties
Crystallizes (dichloromethane/hexane). Melting point 239-241°C.
Uses
A major metabolite of Chlordiazepoxide (C327050). A benzodiapine derivative with anticonvulsant properties.
Synthesis Reference(s)
Journal of Heterocyclic Chemistry, 4, p. 647, 1967 DOI: 10.1002/jhet.5570040435
The Journal of Organic Chemistry, 26, p. 4936, 1961
Demoxepam Preparation Products And Raw materials
Raw materials
1of2
Preparation Products
Global( 83)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Chemsky (shanghai) International Co.,Ltd | 021-50135380 | shchemsky@sina.com | China | 15350 | 60 |
| Sinopharm Chemical Reagent Co,Ltd. | 86-21-63210123 | sj_scrc@sinopharm.com | China | 9791 | 79 |
| Quality Control Solutions Ltd. | 0755-66853366 13670046396 | orders@qcsrm.com | China | 18188 | 56 |
| Shandong Boluoda Biological Technology Co., Ltd. | 0531-68651502 | 2310993908@qq.com | China | 3157 | 58 |
| Shanghai Kewel Chemical Co., Ltd. | 021-64609169 18901607656 | greensnown@163.com | China | 9883 | 50 |
| Chizhou Kailong Import and Export Trade Co., Ltd. | xg01_gj@163.com | China | 9413 | 50 | |
| Artis Biotech Co. Ltd. | 18108108965 18108108965 | sales@artisbio.com | China | 2503 | 58 |
| Shanghai EFE Biological Technology Co., Ltd. | 021-65675885 18964387627 | info@efebio.com | China | 9799 | 58 |
| Amadis Chemical Company Limited | 571-89925085 | sales@amadischem.com | China | 131885 | 58 |
| Shenzhen SUNGENING Bio-Medical Co., Ltd. | 0755-28967200 13631290199 | wxf@sungening.com | China | 9609 | 60 |
View Lastest Price from Demoxepam manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
![]() |
2026-09-13 | Demoxepam
963-39-3
|
0.99 | RongNa Biotechnology Co.,Ltd | ||||
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2020-01-10 | 2H-1,4-Benzodiazepin-2-one,7-chloro-1,3-dihydro-5-phenyl-, 4-oxide
963-39-3
|
$9.80 | 1KG | ≥98% | 20 tons | Career Henan Chemical Co |
-

- Demoxepam
963-39-3
- 0.99
- RongNa Biotechnology Co.,Ltd
-

- 2H-1,4-Benzodiazepin-2-one,7-chloro-1,3-dihydro-5-phenyl-, 4-oxide
963-39-3
- $9.80
- ≥98%
- Career Henan Chemical Co
Chlordiazepoxide lactam
NSC-46007
NSC-46077
1,3-Dihydro-7-chloro-5-phenyl-2H-1,4-benzodiazepin-2-one 4-oxide
Ro 5-2092
Ro 5-2092 lactam
ro5-2092
ro5-2092lactam
CHLORDIAZEPOXIDE RELATED COMPOUND A (25 MG) (7-CHLORO-1,3-DIHYDRO-5-PHENYL-2H-1,4-BENZODIAZEPIN-2-ONE 4-OXIDE)
1,3-dihydro-7-chloro-5-phenyl-2h-1,4-benzodiazepin-2-one4-oxide
2H-1,4-Benzodiazepin-2-one, 1,3-dihydro-7-chloro-5-phenyl-, 4-oxide
2H-1,4-Benzodiazepin-2-one, 7-chloro-1,3-dihydro-5-phenyl-, 4-oxide
4-benzodiazepin-2-one,1,3-dihydro-7-chloro-5-phenyl-2h-4-oxide
4-benzodiazepin-2-one,7-chloro-1,3-dihydro-5-phenyl-2h-4-oxide
7-Chloro-1,3-dihydro-5-phenyl-2H-1,4-benzodiazepin-2-one 4-oxide
7-Chloro-1,3-dihydro-5-phenyl-2H-1,4-benzodiazepin-2-one-4-oxid
7-Chloro-1,3-dihydro-5-phenyl-2H-1,4-ben-zodiazepin-2-one4-oxide
7-chloro-1,3-dihydro-5-phenyl-2h-1,4-benzodiazepin-2-one-4-oxide
7-Chloro-1,3-dihydro-5-phenyl-2H-1,4-benzodiazepine-2-one N-oxide
7-Chloro-5-phenyl-1,3-dihydro-2H-1,4-benzodiazepin-2-one 4-oxide
7-chloro-2-oxo-5-phenyl-1.3-dihydro-2H-1.4-benzoiazepine-4-oxide
1,3-Dihydro-5-phenyl-7-chloro-2H-1,4-benzodiazepin-2-one-4-oxide(diazepinoneN-oxide)
7-Chloro-5-phenyl-1,3-dihydro-2H-1,4-benzodiazepine-2-one 4-oxide
Demoxepam
7-chloro-4-hydroxy-5-phenyl-3H-1,4-benzodiazepin-2-one
Chlordiazepoxide Related Compound A (25 mg) (7-Chloro-1,3-dihydro-5-phenyl-2H-1,4-benzodiazepin-2-one 4-Oxide)
7-Chloro-1,3-dihydro-5-phenyl-2H-1,4-benzodiazepin-2-one 4-oxide
5-Phenyl-7-chloro-3H-1,4-benzodiazepin-2(1H)-one 4-oxide
7-Chloro-2,3-dihydro-5-phenyl-1H-1,4-benzodiazepin-2-one 4-oxide
NSC 169898
NSC 4607
7-Chloro-5-phenyl-1,5-dihydro-2H-1,4-benzodiazepin-2-one 4-oxide
Nordiazepam 4-oxide
7-chloro-5-phenyl-1, 3-dihydro-2H-1, 4-benzodiazpine-2-one-4-oxide
Demoxepam solution
Oxazepam Impurity 5 (Oxazepam EP Impurity E)
7-Chloro-1,3-dihydro-5-phenyl-2H-1,4-benzodiazepin-2
-one-4-oxide [cas#963-39-3]
Oxazepam EP Impurity E
Chlordiazepoxide EP Impurity A
Chlordiazepoxide EP impurity A/ Chlordiazepoxide Related Compund A (Demoxepam)
7-chloro-5-phenyl-1,3-dihydro-2H-1,4-benzodiazpine-2-one-4-o...
Chlordiazepoxide Hydrochloride Impurity A
Oxazepam Impurity E
Chlordiazepoxide Hydrochloride EP Impurity A
Chlordiazepoxide USP Related Compound A
Chlordiazepoxide EP Impurity A
Chlordiazepoxide Related Compound A (7-Chloro-1,3-dihydro-5- phenyl-2H-1,4-benzodiazepin-2-one 4-Oxide)
7-Chloro-5-phenyl-1,3-dihydro-2H-1,4-benzodiazepin-2-one 4-Oxide (Demoxepam)
Demoxepam, 1mg/ml in Acetonitrile
Demoxepam 1.0 mg/ml in Methanol
Oxazepam Impurity 5
Chlordiazepoxide Related CoMpound A
963-39-3
Aromatics
Heterocycles
Intermediates & Fine Chemicals
Metabolites & Impurities
Pharmaceuticals





