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- UN / ID
- —
- Hazard class
- Forbidden
- Packing group
- — (multiple — see tabs)
- ERG guide
- —
- Special provisions
- —
- Source
- 49 CFR §172 (15 June 2026)
This Hazmat is classified as "Forbidden". This means the material may not be offered for transportation or transported in the applicable mode of transport.
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 classForbidden |
(4) Identification number |
(5) Packing Group |
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(6) Labels — |
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(7) Special Provisions (§172.102)
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(8) Packing Authorizations (§173.***)
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| (8A) Exceptions | — |
|---|---|
| (8B) Non-bulk | — |
| (8C) Bulk | — |
(9) Quantity Limits 
| (9A) Passenger aircraft/rail | — |
|---|---|
| (9B) Cargo aircraft only | — |
(10) Vessel stowage 
| (10A) Location | — |
|---|---|
| (10B) Other | — |
(3) Hazard classForbidden |
(4) Identification number |
(5) Packing Group |
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(6) Labels — |
||||||||
(7) Special Provisions (§172.102)
|
||||||||
(8) Packing Authorizations (§173.***)
|
||||||||
| (8A) Exceptions | — |
|---|---|
| (8B) Non-bulk | — |
| (8C) Bulk | — |
(9) Quantity Limits 
| (9A) Passenger aircraft/rail | — |
|---|---|
| (9B) Cargo aircraft only | — |
(10) Vessel stowage 
| (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.
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 |
|---|---|---|
| Dibenzyl peroxydicarbonate, with more than 87 percent with water | Forbidden | |
| n-Butyl peroxydicarbonate, with more than 52 percent in solution | Forbidden | |
| Diethyl peroxydicarbonate, with more than 27 percent in solution | Forbidden | |
| UN 3378 | Sodium carbonate peroxyhydrate | 5.1 |
| UN 2366 | Diethyl carbonate | 3 |
| UN 1161 | Dimethyl carbonate | 3 |