HazMat Tool — substance information

Selenium disulfide

HMT 15 June 2026
Reference only — HMT snapshot for inspection and audit support; not a shipping paper, placard mandate, or CVI record. Use Print / PDF below for field notes.
UN / ID
UN 2657
Hazard class
6.1
Packing group
II
ERG guide
ERG 153
Special provisions
SP IB8, SP IP2, SP IP4, SP T3, SP TP33
Source
49 CFR §172 (15 June 2026)

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Selenium disulfide


Selenium disulfide, also known as selenium sulfide, is a chemical compound and medication used to treat seborrheic dermatitis, dandruff, and pityriasis versicolor. It is applied to the affected area as a lotion or shampoo. Symptoms frequently return if treatment is stopped. Side effects may include hair discoloration, skin irritation, and risk of systemic absorption and toxicity, among others Wikipedia

Substance Data

Source: PubChem

CAS-Number

7488-56-4

Flash Point

n/a

Boiling Point

n/a

Emergency Response Guide No. 153

Hazardous Materials Table

Source: 49 CFR §172 (15 June 2026)

(3) Hazard Class

6.1
Poisonous Material

(4) Identification number Help

UN 2657

(5) Packing Group Help

II

(6) Labels Help

Poisonous liquids PG I Zone A (6.1)

(7) Special Provisions (§172.102) Help

×Note:
Special provisions may be very complex. The extracts are taken from 49 CFR §172.102. Please be careful with the information, as necessary, additional conditions may be applied that are not written here. Please check the original source and report bugs.
IB8
IP2
IP4
T3
TP33

(8) Packing Authorizations (§173.***) Help

(8A) Exceptions153see 49 CFR §173.153
(8B) Non-bulk212see 49 CFR §173.212
(8C) Bulk242see 49 CFR §173.242

(9) Quantity Limits Help

(9A) Passenger aircraft/rail25 kg
(9B) Cargo aircraft only100 kg

(10) Vessel stowage Help

(10A) Location
(10B) Other n/a

Segregation chart for load, transport, and storage

This chart shows whether loading, transport, or storage with other hazard classes is permitted, prohibited, or restricted. Based on 49 CFR §177.848.

Scope & sources (important)Click to show CFR references

This check evaluates segregation per 49 CFR §177.848. Additional loading/unloading and handling requirements may still apply; see 49 CFR §177 Subpart B (Loading and Unloading):

  • §177.834 - General requirements
  • §177.835 - Class 1 materials
  • §177.837 - Class 3 materials
  • §177.838 - Class 4 (flammable solid) materials, Class 5 (oxidizing) materials, and Division 4.2 (pyroforic liquid) materials
  • §177.839 - Class 8 (corrosive) materials
  • §177.840 - Class 2 (gases) materials
  • §177.841 - Division 6.1 and Division 2.3 materials
  • §177.842 - Class 7 (radioactive) material
  • §177.843 - Contamination of vehicles

Similar substances

UN / IDProper shipping nameHazard class
UN 3440Selenium compound, liquid, n.o.s6.1
UN 3283Selenium compound, solid, n.o.s6.1
UN 2194Selenium hexafluoride2.3
Selenium nitrideForbidden
UN 2879Selenium oxychloride8