o-Toluidine hydrochloride
Also known as: 2-Methylaniline hydrochloride, 2-Methylbenzenamine hydrochloride, o-Aminotoluene hydrochloride, o-Toluidinium chloride, 2-Toluidine hydrochloride, o-Methylaniline hydrochloride, o-Tolylamine hydrochloride, Prilocaine impurity B, Prilocaine Related Compound A, Benzenamine, 2-methyl-, hydrochloride (1:1)
o-Toluidine hydrochloride (CAS 636-21-5) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C7H10ClN and a molecular weight of 143.614 g/mol. Key properties include a melting point of 215-217 °C(lit.), a boiling point of 242 °C and a flash point of 85ºC. It is classified under GHS with signal word Danger and hazard statements H312 — Harmful in contact with skin, H332 — Harmful if inhaled and H350 — May cause cancer. It is listed by 3 suppliers, 2 of which publish reference prices, from 1.80 to 3.60 CNY. Record last updated Aug 21, 2026.
- CAS No.
- 636-21-5
- Jingsj CID
- J-1068954-3
- Molecular Formula
- C7H10ClN
- Molecular Weight
- 143.614 g/mol
- Category
- Solvents
- Last updated
- 8/21/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
Made to Order | 98% 500g | ¥900.00 | $0.27 /gBest ¥1.80/g CNY | CN China MOQ 500g | |
Made to Order | 95% 500g | ¥1,460.00 | $0.44 /g ¥2.92/g CNY | CN China MOQ 500g | |
Made to Order | 95% 100g | ¥320.00 | $0.48 /g ¥3.20/g CNY | CN China MOQ 100g |
Physicochemical Properties
| Melting Point | 215-217 °C(lit.) |
|---|---|
| Boiling Point | 242 °C |
| Flash Point | 85ºC |
| Exact Mass | 143.050171 |
| PSA | 26.02000 |
| LogP | 2.96040 |
GHS Safety & Compliance
- H312 — Harmful in contact with skin
- H332 — Harmful if inhaled
- H350 — May cause cancer
Customs & Trade Information
| HS Code | 2921430090 |
|---|---|
| Summary | HS:2921430090 toluidines and their derivatives; salts thereof VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of o-Toluidine hydrochloride?
The CAS number of o-Toluidine hydrochloride is 636-21-5.
What are the molecular formula and molecular weight of o-Toluidine hydrochloride?
o-Toluidine hydrochloride has molecular formula C7H10ClN and molecular weight 143.614 g/mol.
Which suppliers offer o-Toluidine hydrochloride?
3 supplier(s) listed; reference unit price ¥1.80–3.60 /g.
Is o-Toluidine hydrochloride hazardous?
o-Toluidine hydrochloride has GHS signal word Danger and hazard statements H312 — Harmful in contact with skin; H332 — Harmful if inhaled; H350 — May cause cancer.
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-Toluidine hydrochloride (CAS 636-21-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1068954-3 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.