HazMat Tool — substance information Reference only — not a shipping paper, placard mandate, or CVI record.

Di-n-butyl peroxydicarbonate, with more than 52 percent in solution

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
—
Hazard class
Forbidden
Packing group
— (multiple — see tabs)
ERG guide
—
Special provisions
—
Source
49 CFR §172 (15 June 2026)

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Di-n-butyl peroxydicarbonate, with more than 52 percent in solution


N,N′-Di-n-butylthiourea is an organic compound with the formula S=C(N(H)Bu)2 (Bu = butyl). A symmetrical N,N′-dialkyl thiourea derivative, it is a white solid. Like other thiourea derivatives, it features a planar core. The C=S bond distance is 1.712(2) Å, while C−N distances are in range of 1.33 to 1.46 Å Wikipedia

Hazardous Materials Table

Source: 49 CFR §172 (15 June 2026)

(3) Hazard class

(4) Identification number Help

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(5) Packing Group Help

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(6) Labels Help

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(7) Special Provisions (§172.102) Help

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

(8A) Exceptions—
(8B) Non-bulk—
(8C) Bulk—

(9) Quantity Limits Help

(9A) Passenger aircraft/rail—
(9B) Cargo aircraft only—

(10) Vessel stowage Help

(10A) Location—
(10B) Other—

(3) Hazard class

(4) Identification number Help

—

(5) Packing Group Help

—

(6) Labels Help

—

(7) Special Provisions (§172.102) Help

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

(8A) Exceptions—
(8B) Non-bulk—
(8C) Bulk—

(9) Quantity Limits Help

(9A) Passenger aircraft/rail—
(9B) Cargo aircraft only—

(10) Vessel stowage Help

(10A) Location—
(10B) Other—

Packing group comparison

Multiple packing groups apply to this entry. See assignment criteria in 49 CFR §173 Subpart D. Details are in the tabs above; differences are highlighted.

PG — PG —
1
2Di-n-butyl peroxydicarbonate, with more than 52 percent in solutionn-Butyl peroxydicarbonate, with more than 52 percent in solution
3ForbiddenForbidden
4——
5——
6——
7——
8A——
8B——
8C——
9A——
9B——
10A——
10B——

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.