Benzene (벤젠) — K-REACH Regulatory Data

CAS 71-43-2 · KE KE-02150 · C6H6 · MW 78.11

TOXIC PRIORITY CMR

Benzene is one of the most heavily regulated chemical substances in Korea. Classified as toxic (유독물질), a priority management substance (중점관리물질), and an accident preparedness substance (사고대비물질), it carries multiple regulatory obligations under K-REACH. It is a known human carcinogen (GHS Class 1A) and requires registration as an existing chemical substance.

Regulatory Classification

Flag	Status
Toxic	Yes
Restricted	No
Prohibited	No
Priority	Yes
Cmr	No
Accident Prep	Yes
Registration Req	Yes
Rotterdam	No

GHS Hazard Classification

Property	Value
Signal Word	위험 (Danger)
Pictograms	GHS02, GHS07, GHS08
UN Number	1114

Hazard Statements

H225 (Flammable liquid)
H304 (Aspiration hazard)
H315 (Skin irritation)
H319 (Eye irritation)
H340 (Germ cell mutagenicity)
H350 (Carcinogenic)
H372 (STOT repeated)
H412 (Aquatic chronic)

API Response Example

Retrieve this data with a single API call:

GET /v1/substance/cas/71-43-2

{
  "substance": {
    "cas_no": "71-43-2",
    "name_eng": "Benzene",
    "name_kor": "벤젠",
    "formula": "C6H6",
    "flags": {
      "is_toxic": true,
      "is_restricted": false,
      "is_prohibited": false,
      "is_priority": true,
      "is_cmr": false,
      "is_accident_prep": true,
      "is_registration_req": true,
      "is_rotterdam": false
    }
  },
  "regulations": [...],
  "ghs": {
    "signal_word": "위험",
    "pictograms": ["GHS02", "GHS07", "GHS08"]
  }
}

Why This Data Matters

Any company importing, manufacturing, or using benzene in Korea must comply with multiple overlapping regulations. Automated screening through the K-REACH API can identify all applicable regulations in a single API call.

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