o-Tolidine dihydrochloride
Also known as: 3,3′-Dimethylbenzidine dihydrochloride, 4,4′-Diamino-3,3′-dimethylbiphenyl dihydrochloride, 3,3′-Dimethyl-[1,1′-biphenyl]-4,4′-diamine dihydrochloride, 4,4′-Bi-o-toluidine dihydrochloride, 3,3′-Dimethylbiphenyl-4,4′-diamine dihydrochloride, 3,3′-Dimethyl-4,4′-diaminobiphenyl dihydrochloride, Benzidine, 3,3′-dimethyl-, dihydrochloride, o-Tolidine dihydrochloride (ACS), o-Tolidine 2HCl, EINECS 210-322-5, MFCD00012960
o-Tolidine dihydrochloride (CAS 612-82-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C14H18Cl2N2 and a molecular weight of 285.21 g/mol. Key properties include a melting point of >300°C and a boiling point of 361ºC at 760 mmHg. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed, H350 — May cause cancer and H411 — Toxic to aquatic life with long lasting effects. It is listed by 1 supplier, from 3.00 to 3.00 CNY per 500g. Record last updated Nov 3, 2026.
- CAS No.
- 612-82-8
- Jingsj CID
- J-1437696-6
- Molecular Formula
- C14H18Cl2N2
- Molecular Weight
- 285.21 g/mol
- Category
- Organic Acids
- Last updated
- 11/3/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
Made to Order | 99% 500g | ¥1,500.00 | $0.45 /gBest ¥3.00/g CNY | CN China MOQ 500g |
Physicochemical Properties
| Melting Point | >300°C |
|---|---|
| Boiling Point | 361ºC at 760 mmHg |
| Exact Mass | 284.084717 |
| PSA | 52.04000 |
| LogP | 5.90120 |
| SMILES | CC1=C(C=CC(=C1)C2=CC(=C(C=C2)N)C)N.Cl.Cl |
| InChIKey | LUKPNZHXJRJBAN-UHFFFAOYSA-N |
| InChI | 1S/C14H16N2.2ClH/c1-9-7-11(3-5-13(9)15)12-4-6-14(16)10(2)8-12;;/h3-8H,15-16H2,1-2H3;2*1H |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H350 — May cause cancer
- H411 — Toxic to aquatic life with long lasting effects
Customs & Trade Information
| Additional Information | 29215900 |
|---|
Frequently Asked Questions
What is the CAS number of o-Tolidine dihydrochloride?
The CAS number of o-Tolidine dihydrochloride is 612-82-8.
What are the molecular formula and molecular weight of o-Tolidine dihydrochloride?
o-Tolidine dihydrochloride has molecular formula C14H18Cl2N2 and molecular weight 285.21 g/mol.
Which suppliers offer o-Tolidine dihydrochloride?
1 supplier(s) listed; reference unit price ¥3.00–3.00 /g.
Is o-Tolidine dihydrochloride hazardous?
o-Tolidine dihydrochloride has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H350 — May cause cancer; H411 — Toxic to aquatic life with long lasting effects.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "o-Tolidine dihydrochloride (CAS 612-82-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1437696-6 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.