HazMat Tool — substance information

Diazodiphenylmethane

HMT 15 June 2026

UN / ID: n/a
Hazard class: Forbidden
Packing group: —
ERG guide: —
Special provisions: —
Source: 49 CFR §172 (15 June 2026)

On this page

Diazodiphenylmethane

Diazodiphenylmethane is an organic reagent with the chemical formula C13H10N2. It exists as red-black crystals that melt just above room temperature Wikipedia

Hazardous Materials Table

Source: 49 CFR §172 (15 June 2026)

(3) Hazard Class

Forbidden

(4) Identification number

n/a

(5) Packing Group

n/a

(6) Labels

n/a

(7) Special Provisions (§172.102)

(8) Packing Authorizations (§173.***)

(8A) Exceptions	n/a	see 49 CFR §173. n/a
(8B) Non-bulk	n/a	see 49 CFR §173. n/a
(8C) Bulk	n/a	see 49 CFR §173. n/a

(9) Quantity Limits

(9A) Passenger aircraft/rail	n/a
(9B) Cargo aircraft only	n/a

(10) Vessel stowage

(10A) Location	n/a see
(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.

This Hazmat is classified as "Forbidden". This means the material may not be offered for transportation or transported in the applicable mode of transport.

Similar substances

UN / ID	Proper shipping name	Hazard class
UN 2026	Phenylmercuric compounds, n.o.s.	6.1
UN 0208	Trinitrophenylmethylnitramine or Tetryl	1.1D